MINCKLEY, W.L. Department of Zoology, Arizona State University, Tempe, Arizona 85287- 1501

A Bibliography for Natural History of the Cuatro Ciénegas Basin and Environs, Coahuila, Mexico

Bibliografía de la Historia Natural del Bolsón de Cuatro Ciénegas, Coahuila, México

KEYWORDS: Bibliography; Cuatro Ciénegas

CLAVES: bibliografía; Cuatro Ciénegas

ABSTRACT

It was suggested at the 1993 meeting of the Desert Fishes Council that it would be useful to all concerned with conservation of Cuatro Ciénegas if a comprehensive bibliography of natural history studies from the area could be compiled and published. Several members and others subsequently provided input which supplemented my initial compilation. By the time this issue of the Proceedings was in press, nearly 500 references had been compiled. It is hoped that publication of this compilation will be useful and will facilitate progress toward conservation of the basin. Perhaps it will also inspire others to provide corrections and their own bibliographies for subsequent publication of revisions and updates.

RESUMEN

Una sugerencia hecha durante la reunión del Consejo de Los Peces del Desierto en 1993 fue que sería muy útil para todos una recopilación y publicación de una bibliografía comprensiva sobre estudios de historia natural del área. Varios miembros y otros entonces contribuyeron datos suplementarios a los míos. En la fecha de imprimir este volumen del Proceedings, la bibliografía contó con aproximadamente 500 trabajos. Es mi esperanza que será útil y facilitará progreso hacia la conservación del bolsón. Tal vez animará a otros que provean correcciones y sus propios bibliografías para publicaciones futuros de revisiones y actualizaciones.

CONTRIBUTED PAPER

The present bibliography has been accumulated and compiled since the late 1950's, but still remains incomplete. Both old and new references have been found and added and errors corrected each year. Some citations (marked with asterisks) also remain less than complete, lacking in pagination or some other feature. It was decided to provide the bibliography in its present form anyway, to stimulate research and interest and emphasize the uniqueness of the remarkable intermontane basin of Cuatro Cienegas in northern Mexico. It should prove useful not only for workers dealing with the immediate area and its biota, but for those dealing with the Chihuahuan Desert in general as well. Hopefully there are not too many errors or omissions. Most papers listed here deal specifically with the Cuatro Cienegas basin and its biota, but some are included because the region, some characteristic organism, or another feature was mentioned or referenced in the context of comparisons, revisionary works, or other such areas or biotic elements.

The bibliography is biased toward aquatic biology, my principal area of research. Fortunately, Professor Donald J. Pinkava, Department of Botany, Arizona State University, helped with botanical literature, Professor Salvador Contreras- Balderas, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, Mexico, assisted with Mexican references, Dr. Barbara M. Winsborough of Austin, Texas, added citations on stromatolites, and Dr. Clarence J. ("Jack") McCoy, Carnegie Museum, Pittsburg, Pennsylvania, tracked contributions in herpetology. Their assistance was deeply appreciated, but any errors or omissions in these areas are clearly my responsibility and should not reflect upon their efforts. Appreciation is further extended in advance for any additions, corrections, or suggestions for deletions, since I intend to continue this compilation for the foreseeable future.

Sadly, Jack McCoy passed away in 1993. This bibliography is dedicated to his memory in fond recollection and heartfelt appreciation for good times in Cuatro Cienegas and elsewhere, and for his years of dedication to conservation in general and specifically of the basin and its biota.

Bibliography

Alessio- Robles, V. 1927. Bibliografía de Coahuila. Distrito Federal, México.

______. 1938. Coahuila y Texas en la Epocha Colonial. Editorial Cultura, Distrito Federal, México.

Allred, Kelly W. & Frank W. Gould. 1983. Systematics of the Bothriochloa saccharioides complex (Poaceae: Andropogoneae). Systematic Botany 8(2):168- 184.

*Almada- Villela, Patricia C. & Salvador Contreras- Balderas. 1984(5?). El Bolsón de Cuatro Cienegas, Coah., Mex. La Reunión Estatal Coah. 22- 23 Marzo 1984. Secretaria de Desarrollo Urbano y Ecologia (SEDUE), Distrito Federal, México.

*______ & ______. 1984(5?). Ibid. La Reunión Regional de Ecología, Norte. 25- 27 Abril 1984. Pp. 125- 129. Ibid.

*______ & ______. 1984(5?). Ibid. La Reunión Nacional sobre Ecología. 5- 9 Junio 1984. Ibid.

Anderson, Christiane. 1972. A monograph of the Mexican and Central American species of Trixis (Compositae). Memoirs of the New York Botanical Garden 11:1- 68.

Anonymous. 1965. Photograph (with minor text) of Cuatro Cienegas residents interested in conservation, along with William S. Brown, then a graduate student at Arizona State University. El Día, Voz y Expresión de Coahuila, Monclova 12(3971):1 (23 Augosto 1965).

Argano, R. 1974. Mexistenasellus magniezi, n. sp., a blind aquatic isopod from Veracruz, Mexico (Crustacea). Quaderni Academia Nazionale dei Lincei, Problemi Attuali di Scienza e di Cultura 171:97- 103.

Arnold, Elena Troxel 1966. Comparative studies of mating behavior in gambusiin fishes (Cyprinodontiformes: Poeciliidae). Master's Thesis. Arizona State University, Tempe USA.

______. 1972. Behavioral ecology of two pupfishes (Cyprinodontidae, genus Cyprinodon) from northern Mexico. Doctoral Dissertation. Arizona State University, Tempe USA.

______. 1983. Pupfishes (genus Cyprinodon) of Cuatro Cienegas: Hybridization in an intermediate habitat. Proceedings of the Desert Fishes Council 5(1972):114 (abstr.).

Ashe, Victor M., David Chiszar & Hobart M. Smith. 1975. Behavior of aquatic and terrestrial turtles on a visual cliff. Chelonia 2(4):3- 7.

Atwood, N. Duane & Donald J. Pinkava. 1977. A new gypsophilous species of Phacelia (Hydrophyllaceae) from Coahuila, Mexico. Madrono 24(4):212- 214.

Auffenberg, Walter. 1958. Fossil turtles of the genus Terrapene in Florida. Bulletin of the Florida State Museum 3(2):53- 92.

______ & William W. Milstead. 1965. Reptiles in the Quaternary of North America. Pp. 557- 567, in H. E. Wright, Jr. & David G. Frey (eds.). The Quaternary of the United States, Princeton University Press, Princeton, New Jersey USA.

Austin, Daniel F. & G. W. Staples. 1985. Petropgenia as a synonym of Bonamia (Convolvulaceae). Brittonia 37:310- 316.

Averett, John E. 1979. Biosystematics of the physaloid genera of the Solanaceae in North America. Pp. 493- 504, in J. G. Hawkes, R. N. Lester & A. D. Skelding (eds.). The Biology and Taxonomy of the Solanaceae. Linnaean Society Symposium, Series 7. London, England.

Axtell, Ralph W. 1961. Cnemidophorus inornatus, the valid name for the little striped whiptail lizard, with the description of an annectant subspecies. Copeia 1961(2):186- 191.

Bacon, John D. 1978. Taxonomy of Nerisyrenia (Cruciferae). Rhodora 90(822):159- 227.

Bailey, D. K. & Frank G. Hawksworth. 1979. Pinyons of the Chihuahuan Desert region. Phytologia 44(3):129- 133.

Bailey, D. K. & Tom Wendt. 1979. New pinyon records for northern Mexico. The Southwestern Naturalist 24(2):389- 390.

Baker, Charles Laurence. 1971. Geologic reconnaissance in the eastern cordillera of Mexico. Geological Society of America Special Paper 131:i- x, 1- 83, 18 pls., 1 map.

Baker, Rollin H. 1956. Mammals of Coahuila. Publications of the University of Kansas Museum of Natural History 9:125- 335.

Barber, Susan C. 1982. Taxonomic studies in the Verbena stricta complex (Verbenaceae). Systematic Botany 7(4):433- 456.

Balogh, P. & E. Greenwood. 1983. Cutsis Balogh, Greenwood and Gonzales, a new genus from Mexico. Phytologia 51(5):297- 298.

Barnard, J. L. & C. M. Barnard. 1983. Freshwater Amphipoda of the World: I. Evolutionary patterns. Hayfield Associates, Mount Vernon, Virginia USA.

______ & ______. 1983. Freshwater Amphipoda of the World: II. Handbook and Bibliography. Ibid.

Barnard, J. L. & G. S. Karaman. 1982. Classificatory revisions in gammaridean Amphipoda (Crustacea). Part 2. Proceedings of the Biological Society of Washington 95:167- 187.

Beauchamp, R. Mitchel. 1980. A new name in American acacias. Phytologia 46(1):5- 9.

Beetle, Alan A. 1981. Noteworthy grasses from Mexico. IX. Ibid. 49(1):33- 43.

Behler, John L. 1971. Coahuila box turtle Terrapene coahuila. Animal Kingdom 74(5):33.

Benson, Lyman. 1982. The Cacti of the United States and Canada. Stanford University Press, Stanford, California USA.

Berry, James F. & Richard Shine. 1980. Sexual size dimorphism and sexual selection in turtles (Order Testudines). Oecologia 44(2):185- 191.

Betancourt, Julio L., Thomas R. Van Devender & Paul S. Martin. 1990. Packrat Middens: The Last 40,000 Years of Biotic Change. The University of Arizona Press, Tucson USA.

Boke, Norman H. 1968. Excursiones de la Universidad de Oklahoma en el Norte de México - 1967. Cactáceas y Suculentas Mexicanas 13:50- 58.

Bose, E. 1921. On the Permian of Coahuila, northern Mexico. American Journal of Science, Fifth Series 1:187- 194.

______. 1923. Vestiges of an ancient continent in northeast Mexico. Ibid. 6:127- 136, 196- 214, 310- 337.

______ & O. A. Cavins. 1927. The Cretaceous and Tertiary of southern Texas and northern Mexico. The University of Texas Bulletin 2748:7- 142, 1 plate.

Bowman, Thomas E. 1982. Speocirolana pubens and S. endeca, new troglobitic isopods from Mexico (Flabellifera: Cirolanidae). Bulletin of the Association of Mexican Cave Studies 8:13- 23 (Bulletin of the Texas Memorial Museum 28:13- 23).

______. 1982. Three new stenasellid isopods from Mexico. Ibid. 8:25- 38 (Ibid. 28:25- 38).

______. 1982. Mysidacea. Pp. 201- 202, in S. H. Hurlbert & A. Villalobos- Figueroa (eds.). Aquatic Biota of Mexico, Central America and the West Indies. San Diego State University, San Diego, California USA.

Boyd, W. C. 1959. A possible example of the action of selection in human blood groups. Journal of Medical Education 34:398- 399.

Bramble, Dennis M. 1974. Emydid shell kinesis: Biomechanics and evolution. Copeia 1974(3):707- 727.

Branson, Branley A. 1970. Notes on gastropods from Texas, New Mexico, and Mexico. The Southwestern Naturalist 14:371- 372.

Breckenridge III, F. G. & J. M. Miller. 1982. Pollination biology, distribution, and chemotaxonomy of the Echinocereus ennaeacanthus complex (Cactaceae). Systematic Botany 7(4):365- 378.

Brown, David E. (ed.). 1983. Biotic Communities of the American Southwest- - United States and Mexico. Desert Plants (Boyce Thompson Arboretum, Superior, Arizona, Special Issue 1982) 4(1- 4):1- 342.

______. 1983. Chihuahuan desertscrub. Pp. 169- 179, 330- 331, + lit. cited in Ibid.

Brown, George W., Jr. (ed.). 1968. Desert Biology, Volume 1. Academic Press, New York USA.

______. (ed.). 1974. Ibid., Volume 2. Ibid.

Brown, William S. 1965. La vida de las tortugas. I. El Día, Voz y Expresión de Coahuila, Monclova 12(3973):1, 5 (25 Augosto 1965).

______. 1965. Ibid. II. Ibid. 12(3974):1, 5 (26 Augosto 1965).

______. 1965. Ibid. III. Ibid. 12(3975):1, 5 (28 Augosto 1965).

______. 1966. Ecological observations of the Coahuilan box turtle in northern Mexico. Bulletin of the Philadelphia Herpetological Society 14(2):1 (abstr.).

______. 1967. Natural history of Terrapene coahuila, a relict aquatic box turtle in northern Mexico. Master's Thesis. Arizona State University, Tempe USA.

______. 1971. Morphometrics of Terrapene coahuila (Chelonia, Emydidae) with comments on its evolutionary status. The Southwestern Naturalist 16(2):171- 184.

______. 1974. Ecology of the aquatic box turtle Terrapene coahuila (Chelonia, Emydidae) in northern Mexico. Bulletin of the Florida State Museum 19(1):1- 67.

Burch, J. B. 1982. Freshwater snails (Mollusca: Gastropoda) of North America. U.S. Environmental Protection Agency, Contract No. 68- 03- 1280, EPA- 600/3- 82/026.

Burckhardt, C. 1930. Etude synthetique sur le Mesozoique Mexicain. Memoires de la Societe Paleontolique Suisse 40:1- 280.

Camara- Barbachano, Fernando (coordinator). 1964. Simposio: Desarrollo Agrícola de las Comunidades Indígenas y Campesinas. Actas y Memorias Sobretiro del XXXV Congreso Internacional de Americanistas, Distrito Federal, México.

Camarillo- R. & F. Rivera- A (eds). Areas Naturales Protegidas en México y Especies en Peligro de Extinción. Universidad Nacional Autónoma de México, Distrito Federal, México.

Campos, H. H. & Clark Hubbs. 1971. Cytomorphology of six species of gambusiine fishes. Copeia 1971(3):566- 569.

Caran, S. C. & Barbara M. Winsborough. 1986. Depositional environments of the Cuatro Cienegas basin, northeastern Mexico- - Inland "Sabkhas" and stromatolitic lakes. Abstracts with Programs, Meeting and Exposition of the Geological Society of America 1986:557 (abstr.).

Casas- Andreu, Gustavo. 1967. Contribución al conocimiento de las tortugas dulceacuícolas de México. Universidad Nacional Autónoma de México, Distrito Federal, México.

Charleston, Santiago. 1974. Stratigraphy, tectonics, and hydrocarbon potential of the Lower Cretaceous, Coahuila Series, Coahuila, Mexico. Doctoral Dissertation, University of Michigan, Ann Arbor USA.

______. 1981. A summary of the structural geology and tectonics of the state of Coahuila, Mexico. Pp. 28- 36, in C. I. Smith & S. B. Katz (eds.), Lower Cretaceous stratigraphy and structure, northern Mexico. West Texas Geological Society Field Trip Guidebook, Publication 81- 74.

Chavez- C., Juan Manuel, Jose Arevalo- Ramirez, Juan Manuel Razo- G. & Pilar Rodriguez- M. 1988. Informe de la Fase de Diagnóstico del Proyecto: Plan de Manejo Integral de la Reserva de la Biósfera "Cuatro Cienegas." Secretaria de Desarrollo Urbano y Ecología (SEDUE), Distrito Federal, México.

Chavez- Ortega, Jesus, Salvador Contreras- Balderas & Maria de Lourdes Lozano- Vilano. 1988. Osteología de Cyprinodon atrorus y C. bifasciatus. I. Cintura pectoral, pélvica y complejo caudal (Pisces: Cyprinodontidae). Memorias del IX Congreso Nacional de Zoología 2:53- 59.

______, ______ & ______. 1990. Osteology of Cyprinodon atrorus and C. bifasciatus. II. Syncranium. Proceedings of the Desert Fishes Council 19(1987):55 (abstr.).

Chiang, Fernando. 1982. Nuevas combinaciones y una nueva variedad de Lycium (Solanaceae) de Norteamerica. Boletin de la Sociedad Botánica de México 43:5- 8.

______. 1982. Estudios cromosómicos en Lycium (Solanaceae) de Norteamerica. Ibid. 43:9- 23.

______, Tom Wendt & Emily J. Lott. 1979. Lycium arochae (Solanaceae), a new species from central Coahuila, Mexico. Madrono 26(4):180- 183.

Chrapliwy, Peter W. 1956. Extensions of known ranges of certain amphibians and reptiles of Mexico. Herpetologica 12:121- 124.

______, Kenneth Williams & Hobart M. Smith. 1961. Noteworthy records of amphibians and reptiles from Mexico. Ibid. 17(2):85- 90.

Clausen, Robert T. 1979. Sedum in six areas of the Mexican Cordilleran Plateau. Bulletin of the Torrey Botanical Club 106(3):205- 216.

Cokendolpher, J. C. 1980. Hybridization experiments with the genus Cyprinodon (Teleostei: Cyprinodontidae). Copeia 1980(1):173- 176.

Cole, Charles J. & Laurence M. Hardy. 1981. Systematics of North American colubrid snakes related to Tantilla planiceps (Blainville). Bulletin of the American Museum of Natural History 171(3):199- 284.

Cole, Gerald A. 1963. The American Southwest and Middle America. Pp. 393- 434, in David G. Frey (ed.). Limnology in North America. University of Wisconsin Press, Madison USA.

______. 1968. Desert Limnology. Pp. 423- 485, in George W. Brown, Jr. (ed.). Desert Biology, Volume I. Academic Press, New York USA.

______. 1984. Crustacea from the Bolsón of Cuatro Cienegas, Coahuila, Mexico. Pp. 3- 12, in Paul C. Marsh (ed.). Biota of Cuatro Cienegas, Coahuila, Mexico: Proceedings of a Special Symposium. Fourteenth Annual Meeting, Desert Fishes Council, Tempe, Arizona USA, 18- 20 November 1983. Journal of the Arizona- Nevada Academy of Science 19(1).

______ & W[endell]. L. Minckley. 1966. Speocirolana thermydronis, a new species of cirolanid isopod crustacean from central Coahuila, Mexico. Tulane Studies in Zoology 13(1):17- 22.

______ & ______. 1970. Sphaerolana, a new genus of cirolanid isopod from northern Mexico, with description of two new species. The Southwestern Naturalist 15(1):71- 81.

______ & ______. 1972. Stenasellid isopod crustaceans in the Western Hemisphere- - a new genus and species from Mexico, with a review of other North American freshwater isopod genera. Proceedings of the Biological Society of Washington 84(37):313- 326.

Collins, Joseph T. 1970. Terrapene coahuila (photograph). International Turtle and Tortoise Society 4(3):41.

Conant, Roger. 1965. Miscellaneous notes and comments on toads, lizards, and snakes from Mexico. American Museum Novitates 2205:1- 38.

______. 1969. A review of the water snakes of the genus Natrix in Mexico. Bulletin of the American Museum of Natural History 14:1- 140.

______. 1978. Semiaquatic reptiles and amphibians of the Chihuahuan Desert and their relationships to drainage patterns of the region. Pp. 455- 492, in Roland H. Wauer & David Riskind (eds.). Transactions of the Symposium of the Biological Resources of the Chihuahuan Desert Region, United States and Mexico. U.S. National Park Service Transactions and Proceedings Series 3(1977), Government Printing Office, Washington, District of Columbia USA.

Contreras-Arquieta, Arturo & Carlos H. Treviño-Saldaña. 1994. Ecological distribution of the lizards of Cuatro Ciénegas, Coahuila. Proceedings of the Desert Fishes Council 25(1993):44 (abstr.).

Contreras- Balderas, Armando J. 1984. Birds from Cuatro Cienegas, Coahuila, Mexico. Pp. 77- 80, in Paul C. Marsh (ed.). Biota of Cuatro Cienegas, Coahuila, Mexico: Proceedings of a Special Symposium. Fourteenth Annual Meeting, Desert Fishes Council, Tempe, Arizona USA, 18- 20 November 1983. Journal of the Arizona- Nevada Academy of Science 19(1).

Contreras- Balderas, Salvador. 1969. Perspectivas de la ictiofauna en las zonas áridas del norte de México. International Center for Arid and Semi- arid Land Studies (ICASALS) Publication 3:293- 304. Texas Technological University, Lubbock USA.

______. 1978. Biota endémica de Cuatro Cienegas, Coahuila, México. Memorias Primer Congreso Nacional de Zoología (Chapingo, México) 1:106- 113.

*______. 1978. Lista anotada de especies de peces Mexicanos en peligro o amenazados de extinción en las provincias Sonoriense, Chihuahuense y Tamaulipense. Memorias Segundo Congreso Nacional de Zoología (Monterrey, México) 2:?.

______. 1978. Speciation aspects and man- made community composition changes in the Chihuahuan Desert region, United States and Mexico. Pp. 405- 432, in Roland H. Wauer & David Riskind (eds.). Transactions of the Symposium of the Biological Resources of the Chihuahuan Desert Region, United States and Mexico. U.S. National Park Service Transactions and Proceedings Series 3(1977). Government Printing Office, Washington, District of Columbia USA.

______. 1984. Environmental impacts in Cuatro Cienegas, Coahuila, Mexico: A commentary. Pp. 85- 88, in Paul C. Marsh (ed.). Biota of Cuatro Cienegas, Coahuila, Mexico: Proceedings of a Special Symposium. Fourteenth Annual Meeting, Desert Fishes Council, Tempe, Arizona USA, 18- 20 November 1983. Journal of the Arizona- Nevada Academy of Science 19(1).

______. 1987. Lista anotada de especies de peces mexicanos en peligro o amenazados de extinción. Proceedings of the Desert Fishes Council 16(1985):58- 65.

______. 1991. Conservation of Mexican freshwater fishes: Some protected sites and species, and recent federal legislation. Pp. 191- 198, in W[endell]. L. Minckley & James E. Deacon (eds.). Battle Against Extinction: Native fish Management in the American West. The University of Arizona Press, Tucson USA.

*______. 1990. Importancia, biota endémica y perspectivas actuales de Cuatro Cienegas, Coahuila, México. Memorias Primer Simposio Nacional Areas Protegidas 1986 (Distrito Federal).

______. 1994. History of the movement for conservation of Cuatro Ciénegas. Proceedings of the Desert Fishes Council 25(1993):39 (abstr.).

______ & W[endell]. L. Minckley. 1983. The changing status of aquatic habitats of the Cuatro Cienegas Basin, Coahuila, Mexico. Proceedings of the Desert Fishes Council 5(1972):113.

______ & D. C. Purata- Velarde. 1982. Speocirolana guerrai sp. nov., cirolanido troglobio anopthalmo de la Cueva de la Chorrera, Linares, Nuevo León, México (Crustacea: Isopoda). Bulletin of the Association of Mexican Cave Studies 8:1- 12 (Bulletin of the Texas Memorial Museum 28:1- 12).

Correll, Donavan S., Marshall C. Johnston & collaborators. 1970. The Manual of the Vascular Plants of Texas. Contributions of the Texas Research Foundation 6:1- 1881.

Crane, H. R. 1956. University of Michigan radiocarbon dates. I. Science 124(3224):664.

______ & J. B. Griffin. 1958. Ibid. II. Ibid. 127:1098- 1105.

______ & ______. 1958. Ibid. III. Ibid. 128:1117- 1123.

Cunliffe, Barry (ed.). 1972. World Archaeology 4(2). Routledge & Kegan Paul Ltd., London, England.

Daniel, Thomas F. 1980. Range extensions of Carlowrightia (Acanthaceae) and a key to the species of the United States. The Southwestern Naturalist 25(3):425- 441.

______. 1980. The genus Justicia (Acanthaceae) in the Chihuahuan Desert. Contributions of the University of Michigan Herbarium 14:61- 67.

Davis, John D. & Crawford G. Jackson, Jr. 1973. Notes on the courtship of a captive male Chrysemys scripta taylori. Herpetologica 29(1):62- 64.

D'arcy, William G. 1976. New names and taxa: Solanaceae. Phytologia 34(3):283.

Deacon, James E. & W[endell]. L. Minckley. 1974. Desert Fishes. Pp. 385- 488, in George W. Brown, Jr. (ed.). Desert Biology, Volume 2. Academic Press, New York USA.

______, Gail Kobetich, James D. Williams, Salvador Contreras- Balderas, et al. 1979. Fishes of North America- - endangered, threatened, or of special concern: 1979. Fisheries (American Fisheries Society, Bethesda, Maryland USA.) 4(1):29- 44.

de Leon, A. 1909. Relación y discursos del descubrimiento, población, y pacificación de este nuevo reino de León [1649]. In, Genaro Garcia (ed.). Documentos ineditos y muy raros para la historia de México (volume 25). Distrito Federal, México.

Delgadillo, R. B. 1984. Estudio Ecológico para el Establecimiento de un Parque Nacional in el Valle de Cuatro Ciénegas, Coahuila. Tesis Profesional, ENEP- I Iztacala, Universidad Autónoma de México, Distrito Federal, México.

Demason, L. 1990. Power Collecting in Mexico. Cichlid News 1990:10- 12.

Dixon, James R. 1959. Geographic variation and distribution of the long- tailed group of the glossy snake, Arizona elegans Kennicott. The Southwestern Naturalist 4(1):20- 29.

______ 1970. Coleonyx brevis. Catalog of American Amphibians & Reptiles 88.1- 88.2.

Dodd, C. Kenneth, Jr. & Edmund D. Brodie, Jr. 1975. Notes on the defensive behavior of the snapping turtle, Chelydra serpentina. Herpetologica 31(3):286- 288.

Dowling, Herndon G. 1957. A taxonomic study of the ratsnakes, genus Elaphe Fitzinger. V. The rosalie section. Occasional Papers of the University of Michigan Museum of Zoology 583:1- 22.

Drake, Robert J. 1951. Humboltiana taylori, new species, from northern Coahuila. Revista de la Sociedad Malacologica "Carlos de la Torre" 8(2):93- 96.

Duellman, William E. & Richard G. Zweifel. 1962. A synopsis of the lizards of the sexlineatus group (genus Cnemidophorus). Bulletin of the American Museum of Natural History 123(3):155- 210.

Dunnigan, Bridgett, Douglas M. McElroy & Michael E. Douglas. 1994. Sexual dimorphism and morphological variation in Cichlasoma minckleyi from the Cuatro Ciénegas basin, México. Proceedings of the Desert Fishes Council 25(1993):45 (abstr.).

Echelle, Anthony A. 1989. Conservation genetics and genic diversity in freshwater fishes of western North America. Pp. 141- 154 + lit. cited, in W[endell]. L. Minckley & James E. Deacon (eds.). Battle Against Extinction: Native Fish Management in the American West. The University of Arizona Press, Tucson USA.

______ & Irving L. Kornfield (eds.). 1984. Evolution of Fish Species Flocks. University of Maine at Orono Press, Orono USA.

______, David M. Wildrick & Alice F. Echelle. 1989. Allozyme studies of genetic variation in poeciliid fishes. Pp. 217- 234 + lit. cited, in Gary K. Meffe & Franklin F. Snelson, Jr. (eds.). Ecology and Evolution of Livebearing Fishes (Poeciliidae). Prentice Hall, Englewood Cliffs, New Jersey USA.

Ekholm, Gordon F. & Gordon R. Willey (eds.). 1966. Handbook of Middle American Indians, Volume 4. Archaeological Frontiers and External Connections. The University of Texas Press, Austin USA.

Espinosa- Perez, Hector, Patricia Fuentes- Mata, Maria Teresa Gaspar- Dillanes & Virgilio Arenas. 1993. Notes on Mexican ichthyofauna. Pp. 229- 251, in T. P. Ramamoorthy, Robert Bye, Antonio Lot & John Fa (eds.). Biological Diversity of Mexico: Origins and Distribution. Oxford University Press, New York USA & London, England.

Fleet, Robert R. & James R. Dixon. 1971. Geographic variation within the long- tailed group of the glossy snake, Arizona elegans Kennicott. Herpetologica 27(3):295- 302.

Flyr, Lowell D. 1970. A systematic study of the tribe Leucophylleae (Scrophulariaceae). Doctoral Dissertation, University of Texas, Austin, Texas USA.

Fowler, Beverly Ann & Billie L. Turner. 1977. Taxonomy of Selinocarpus and Ammocodon (Nyctaginaceae). Phytologia 37(3):177- 208.

Frank, G. R. W. 1981. Echinocereus freudenbergeri G.R.W. Frank. Kakteen u. a. Sukkulenten 32(5):102- 105.

Frey, David G. (ed.). 1963. Limnology in North America. University of Wisconsin Press, Madison USA.

Friedman, Marcie. 1987. A preliminary report on parental care in Cuatro Cienegas cichlids. Proceedings of the Desert Fishes Council 16(1984):52 (abstr.).

______. 1987. Las mojarras de Cuatro Ciénegas. Ibid. 16(1984):53 (abstr.).

Fritz, Uwe. 1981. Zwei interessante mexicanische Schmuckschildkroten der Gattung Chrysemys Gray, 1844. Herpetofauna 14:25- 32.

Frost, Darrel R. & Thomas R. van Devender. 1979. The relationships of the ground snakes Sonora semiannulata and S. episcopa (Serpentes: Colubridae). Occasional Papers of the Louisiana State University Museum of Zoology 52:1- 9.

Fryxell, Paul A. 1976. Batesiumalva y Meximalva, dos géneros nuevos de Malvaceas mexicanas. Boletin de la Sociedad Botánica de México 35:23- 36.

______. 1977. New species of Malvaceae from Mexico and Brazil. Phytologia 37(4):285- 316.

______. 1978. Neotropical segregates from Sida L. (Malvaceae). Brittonia 30(4):285- 316.

______. 1978. Sidus Sidarum. II. Sida 7(3):227- 231.

Fulger, Charles M. & Robert G. Webb. 1956. Distributional notes on some reptiles and amphibians from southern and central Coahuila. Herpetologica 12:167- 171.

Garay, L. A. A genetic revision of the Spiranthinae. Botanical Museum Leaflets (Harvard University) 28(4):277- 425.

Garcia-Salas, Juan A. & Armando J. Contreras-Balderas. 1994. Zoogeography and some biological indexes of the ornithofauna of microphyllic desertic underbrush of creosote bush and ocotillo in Cuatro Cienegas valley, Coahuila, Mexico. Proceedings of the Desert Fishes Council 25(1993):43 (abstr.).

Garstka, William R. 1982. Systematics of the mexicana species group of the colubrid genus Lampropeltis, with an hypothesis [on] mimicry. Breviora 466:1- 35.

Gehlbach, Fredrick R. 1981. Mountain Islands and Desert Seas: A Natural History of the U.S.- Mexican Borderlands. Texas A & M University Press, College Station USA.

______ & James K. Baker. 1962. Kingsnakes allied with Lampropeltis mexicana: taxonomy and natural history. Copeia 1962(2):291- 300.

Gilmore, Raymond M. 1947. Report of mammal bones from archaeological sites in Coahuila, Mexico. Journal of Mammalogy 28(2):147- 165.

Goldman, E. A. & R. T. Moore. 1945. The biotic provinces of Mexico. Ibid. 26:347- 360.

Golubic, Stjepko. 1991. Modern stromatolites: a review. Pp. 541- 561, in R. Riding (ed.). Calcareous Algae and Stromatolites. Springer- Verlag, Berlin, Germany.

Gonzalez-Rojas, Jose I. & Armando J. Contreras-Balderas. 1994. Zoogeography and some biological indexes of the ornithofauna associated to vegetation with abundance of Prosopis glandulosa - Acacia greggi in the Cuatro Cienegas valley, Coahuila, Mexico. Proceedings of the Desert Fishes Council 25(1993):40 (abstr.).

Goodwin, J. F. & D. K. Northington (eds.). 1979. Arid Land Plant Resources. International Center for Arid and Semi- arid Land Studies (ICASALS), Texas Technological University, Lubbock USA.

Gore, Robert H. & Kenneth L. Heck. Crustacean Biogeography. A. A. Balkema, Rotterdam, Netherlands and Boston, USA.

Graham, Alan (ed.). 1973. Vegetation and Vegetational History of Northern Latin America. Elsevier Science Publishing, New York USA.

Groombridge, B. & L. Wright. 1982. IUCN Amphibia- Reptilia Red Data Book, Part I. International Union for Conservation of Nature and Natural Resources, Gland, Switzerland.

Guajardo- Martinez, Gerardo. 1984. Preliminary survey of parasites of Cuatro Cienegas, Coahuila, Mexico. Pp. 81- 83, in Paul C. Marsh (ed.). Biota of Cuatro Cienegas, Coahuila, Mexico: Proceedings of a Special Symposium. Fourteenth Annual Meeting, Desert Fishes Council, Tempe, Arizona USA, 18- 20 November 1983. Journal of the Arizona- Nevada Academy of Science 19(1).

Hall, E. Raymond. 1981. The Mammals of North America, Volume 1. John Wiley & Sons, New York USA.

______. 1981. Ibid., Volume 2. Ibid.

______ & K. R. Kelson. 1959. Ibid. Volume 1. Ronald Press, New York USA.

______ & ______. 1959. Ibid., Volume 2. Ibid.

Harcombe, P. A. & J. H. Beaman. 1967. Transfer of two Mexican species from Eupatorium to Brickellia (Compositae). The Southwestern Naturalist 12(1):127- 133.

Hart, C. R. 1978. A new species of Bidens (Compositae) from Mexico. Brittonia 30:289- 292.

______. 1979. The systematics of the Bidens ferulaefolia complex (Compositae). Systematic Botany 4(1):130- 147.

Hawkes, J. G., R. N. Lester & A. D. Skelding (eds.). 1979. The Biology and Taxonomy of the Solanaceae. Linnaean Society Symposium, Series 7. London, England.

Hawksworth, Frank G. & D. Wiens. 1977. Arceuthobium (Visceae) in Mexico and Guatemala: Additions and range extensions. Brittonia 29(4):411- 418.

Henrickson, James 1978. Saline habitats and halophytic vegetation of the Chihuahuan Desert region. Pp. 289- 314, in Roland H. Wauer & David Riskind (eds.). Transactions of the Symposium of the Biological Resources of the Chihuahuan Desert Region, United States and Mexico. U.S. National Park Service Transactions and Proceedings Series 3(1977). Government Printing Office, Washington, District of Columbia USA.

______. 1981. A new subspecies of Comarostaphylis polifolia (Ericaceae) from Coahuila, Mexico. Madrono 28(1):33- 37.

______. 1981. A new species of Satureja (Lamiaceae) from the Chihuahuan Desert region. Brittonia 33:211- 213.

______. 1982. A new species of Poliomentha (Lamiaceae) from the Chihuahuan Desert region. Sida 9:290- 292.

______. 1983. A revision of Samolus ebracteatus (sensu lato) (Primulaceae). The Southwestern Naturalist 28:303- 314.

______. 1983. A new Chihuahuan Desert rose (Rosaceae). Madrono 30(4):226- 229.

______. 1985. A taxonomic revision of Chilopsis (Bignoniaceae). Aliso 11:179- 197.

______. 1989. A new species of Leucospora (Scrophulariaceae) from the Chihuahuan Desert of Mexico. Ibid. 12:435- 439.

______ & Thomas F. Daniel. 1979. Three new species of Carlowrightia (Acanthaceae) from the Chihuahuan Desert region. Madrono 26(1):26- 36.

______ & Emily J. Lott. 1982. New combinations of Chihuahuan Desert Aniscanthus (Acanthaceae). Brittonia 34(2):170- 176.

Hershler, Robert. 1983. The hydrobiid snails (Gastropoda: Rissoacea) of the Cuatro Cienegas Basin, Coahuila, Mexico. Doctoral Dissertation, Johns Hopkins University, Baltimore, Maryland USA.

______. 1984. The hydrobiid snails (Gastropoda: Rissoacea) of the Cuatro Cienegas Basin: Systematic relationships and ecology of a unique fauna. Pp. 61- 76, in Paul C. Marsh (ed.). Biota of Cuatro Cienegas, Coahuila, Mexico: Proceedings of a Special Symposium. Fourteenth Annual Meeting, Desert Fishes Council, Tempe, Arizona USA, 18- 20 November 1983. Journal of the Arizona- Nevada Academy of Science 19(1).

______. 1985. Systematic revision of the Hydrobiidae (Gastropoda: Rissoacea) of the Cuatro Cienegas basin, Coahuila, Mexico. Malacologia 26(1):31- 123.

______ & L. Hayek. 1988. Shell variation of springsnail populations in the Cuatro Cienegas basin, Mexico: Preliminary analysis of limnocrene fauna. Nautilus 102(1):56- 64.

______ & John R. Holsinger. 1990. Zoogeography of North American hydrobiid cavesnails. Stygologia 5(1):5- 16.

______ & W[endell]. L. Minckley. 1986. Microgeographic variation in the banded spring snail (Hydrobiidae: Mexipyrgus) from the Cuatro Cienegas basin, Coahuila, Mexico. Malacologia 27(2):357- 374.

Hershler, Robert & Fred G. Thompson. 1987. North American Hydrobiidae (Gastropoda: Rissoacea): Redescription and systematic relationships of Tryonia Stimpson, 1865 and Pyrgulopsis Call and Pilsbry, 1886. The Nautilus 101(1):25- 32.

______ & ______. 1992. A review of the aquatic gastropod subfamily Cochliopinae (Prosobranchia: Hydrobiidae). Malacological Review, Supplement 5:1- 140.

Hitchcock, C. Leo. 1939. The perennial Mexican Namas. American Journal of Botany 26:341- 347.

Hocutt, Charles H. & Edward O. Wiley (eds.). 1986. Zoogeography of North American Freshwater Fishes. John Wiley & Sons, New York USA.

Holm, R. W. 1950. The American species of Sarcostemma R. Br. (Asclepiadaceae). Annals of the Missouri Botanical Garden 37:477- 560.

Holmgren, Patricia K & W. Keuken. 1974. Index Herbariorum. Part I. The herbaria of the world. Sixth Edition Regnum Vegetabile 92:1- 397.

Holsinger, Robert G. 1973. Two new species of the subterranean amphipod genus Mexiweckelia (Gammaridae) from México and Texas, with notes on the origin and distribution of the genus. Bulletin of the Association of Mexican Cave Studies 5:1- 12.

______. 1982. Amphipoda. Pp. 209- 214, in S. H. Hurlbert & A. Villalobos- Figueroa (eds.). Aquatic Biota of México, Central America and the West Indies. San Diego State University, San Diego, California USA.

______. 1982. Paramexiweckelia, a new genus of subterranean amphipod crustacean (Hadziidae) from northern México. International Journal of Speleology 12(1982):37-44.

______. 1986. Zoogeographic patterns of North American subterranean amphipod crustaceans. Pp. 85-106, in Rober H. Gore & kennerth L. Heck (eds.). Crustacean Biogeography. A. A. Balkema, Rotterdam, Netherlands and Boston, USA.

______. 1992. Two new species of the subterranean amphipod genus Bahadzia (Hadziidae) from the Yucatan Peninsula region of southern Mexico, with an analysis of phylogeny and biogeography of the genus. Stygologia 7(2):85-105.

______. 1992. Four new species of subterranean amphipod crustaceans (Artesiidae, Hadziidae, Sebidae) from Texas, with comments on their phylogenetic and biogeographic relationships. Texas Memorial Museum Special Monograph 3:1-22.

______. 1993. Biodiversity of subterranean amphipod crustaceans: Global patterns and zoogeographic implications. Journal of Natural History 2:821-835.

______ & Glenn Longley. 1980. A subterranean amphipod crustacean fauna of an artesian well in Texas. Smithsonian Contributions to Zoology 308:1-62.

______ & W[endell]. L. Minckley. 1971. A new genus and two new species of subterranean amphipod crustaceans (Gammaridae) from northern México. Proceedings of the Biological Society of Washington 83(37):425- 444.

Hubbs, Carl L. & Clark Hubbs. 1958. Notropis saladonis, a new cyprinid fish endemic in the Rio Salado of northeastern Mexico. Copeia 1958(2):297- 307.

______ & Robert Rush Miller. 1965. Studies of cyprinodont fishes. XXII. Variation in Lucania parva, its establishment in western United States, and description of a new species from an interior basin in Coahuila, Mexico. Miscellaneous Publications of the University of Michigan Museum of Zoology 127:1- 111.

______, G. S. Bien & H. E. Suess. 1965. La Jolla radiocarbon measurements. IV. Radiocarbon 7:66- 117.

Hubbs, Clark. 1978. Summary and conclusions. Pp. 433- 436, in Roland H. Wauer & David Riskind (eds.). Transactions of the Symposium of the Biological Resources of the Chihuahuan Desert Region, United States and Mexico. U.S. National Park Service Transactions and Proceedings Series 3(1977). Government Printing Office, Washington, District of Columbia USA.

Humphreys, W. E. 1956. Tectonic framework of northeast Mexico. Transactions of the Gulf Coast Association of Geological Societies 6:26- 35.

Hunt, David R. 1975. The reunion of Setcreasea and Spathotheca with Tradescanthia. American Commelinaceae I. Kew Bulletin 30(3):443- 458.

Hurlbert, S. H. & A. Villalobos- Figueroa (eds.). 1982. Aquatic Biota of Mexico, Central America and the West Indies. San Diego State University, San Diego, California USA.

Imlay, R. W. 1936. Evolution of the Coahuila Peninsula, Mexico. Part IV. Geology of the western part of the Sierra de Parras. Bulletin of the Geological Society of America 47:1091- 1152.

Irwin, H. S. & Rupert C. Barneby. 1975. Notes preliminary to an account of Cassia in the Chihuahuan Desert. Sida 6:7- 18.

Itzkowitz, Murray. 1967. Courtship and spawning in a pupfish (genus Cyprinodon) from Coahuila, Mexico. Master's Thesis. Arizona State University, Tempe USA.

______ & W[endell]. L. Minckley. 1967. Quantitative behavior of a pupfish (Cyprinodon atrorus) in differing environments. Great Basin Naturalist 29:169- 180.

International Union for Conservation of Nature and Natural Resources (IUCN). 1982. Directory of Neotropical Protected Areas. IUCN Commission on National Parks and Protected Areas (CNPPA), Gland, Switzerland (Tycooly International Publishing Ltd., Dublin, Ireland).

Iverson, John B. 1982. Terrapene coahuila. Catalog of American Amphibians & Reptiles 288.1- 288.2.

Jimenez- Guzman, F. & Gerardo Guajardo- Martinez. 1978. Trematodos digeneos de Mojarras endémicas de Cuatro Ciénegas, Coahila, México. Memorias del Primer Congreso Nacional de Zoología (Chapingo, México) 1:207- 209.

______, ______ & C. H. Briseno. 1981. Trematodos de peces dulecacuícolas de Coahuila, México. I. Quadripaludis luistoddi gen et sp. nov. (Trematoda: Hemiuridae) parásitos de cíclidos endémicas de Cuatro Ciénegas. The Southwestern Naturalist 26(4):409- 413.

Johnson, Ivan M. 1940. New phanerogams from Mexico. II. Journal of the Arnold Arboretum 21:67- 75.

______. 1941. Gypsophily among Mexican desert plants. Ibid. 22:145- 170.

______. 1941. New phanerogams from Mexico. IV. Ibid. 22:110- 124.

______. 1943. Ibid. V. Ibid. 24:90- 98.

______. 1943. Noteworthy species from Mexico and adjacent United States. I. Ibid. 24:227- 236.

______. 1943. Plants of Coahuila, eastern Chihuahua, and adjoining Zacatecas and Durango. I- II. Ibid. 24:306- 339.

______ 1944. Ibid. III. Ibid. 25:43- 83.

______ 1944. Ibid. IV. Ibid. 25:431- 453 ______ 1944. Ibid. V. Ibid. 25:133- 182.

______ 1948. Noteworthy species from Mexico and adjacent United States. II. Ibid. 29:193- 197.

Johnson, Laverne A. 1975. Revision of the Rhamnus serrata complex. Sida 6:67- 79.

Johnson, James E. 1984. Special symposium on the biota of Cuatro Cienegas: A summary. Pp. 89- 90, in Paul C. Marsh (ed.). Biota of Cuatro Cienegas, Coahuila, Mexico: Proceedings of a Special Symposium. Fourteenth Annual Meeting, Desert Fishes Council, Tempe, Arizona USA, 18- 20 November 1983. Journal of the Arizona- Nevada Academy of Science 19(1).

Johnson, Marshall C. 1975, Studies of the Euphorbia species of the Chihuahuan Desert region and adjacent areas. Wrightia 5:120- 143.

______ 1978. Brief resume of botanical, including vegetational, features of the Chihuahuan Desert region with special emphasis on their uniqueness. Pp. 335- 359, in Roland H. Wauer & David Riskind (eds.). Transactions of the Symposium of the Biological Resources of the Chihuahuan Desert Region, United States and Mexico. U.S. National Park Service Transactions and Proceedings Series 3(1977). Government Printing Office, Washington, District of Columbia USA.

______. 1981. Chiococca hendricksonii (Rubiaceae), a new species from the Chihuahuan Desert Region. Madrono 28(1):30- 32.

______. 1981. Spiranthes emiliae, new species, from Sierra de la Madera, Coahuila. Phytologia 48(1):96- 98.

______. 1981. The diandrous, hypostomatic willows (Salicaceae) of the Chihuahuan Desert Region. Madrono 28(3):557- 558.

______. 1981. Andropogon spadiceus (Poaceae), a Coahuila species now known from Texas. The Southwestern Naturalist 25(4):557- 558.

______. 1985. Phyllanthus fraguensis (Euphorbiaceae), a new species from the Chihuahuan Desert region. Systematic Botany 10:300- 302.

Jones T. S. 1938. Geology of Sierra de la Pena and paleontology of the Indidura Formation, Coahuila, Mexico. Bulletin of the Geological Society of America 49:69- 150.

Kallman, Klaus D. 1964. Genetics of tissue transplantation in isolated platyfish populations. Copeia 1964(4):513- 522.

Keil, David J. 1977. Clematis coahuilensis (Ranunculaceae), a new species from north- central Mexico. Bulletin of the Torrey Botanical Club 104(1):10- 11.

______ & Donald J. Pinkava. 1976. Chromosome counts and taxonomic notes for Compositae from the United States and Mexico. American Journal of Botany 63(10):1393- 1403.

Kellum, L. B. 1932. Reconnaissance studies in the Sierra de Jimulco, Mexico. Bulletin of Geological Society of America 43:541- 564.

______. 1936. Evolution of the Coahuila Peninsula, Mexico. Part III. Geology of the mountains west of the Laguna District. Ibid. 47:1039- 1090.

______, R. W. Imlay & W. G. Kane. 1936. Ibid. Part I. Relation of structure, stratigraphy, and igneous activity to an early continental margin. Ibid. 47:969- 1008, 2 pls.

Kelly, W. A. 1936. Ibid. Part II. Geology of the mountains bordering the valleys of Acatita and Las Delicias. Ibid. 47:1009- 1038, 13 plates.

Kennedy, J. P. 1973. Sceloporus olivaceus. Catalog of American Amphibians & Reptiles 143.1- 143.4

King, Robert M. & Harold Robinson. 1970. Studies in the Eupatorieae (Compositae). XIII. The genus Conoclinium. Phytologia 19(5):299- 300.

______ & ______. 1970. Ibid. XIX. New combinations of Ageratina. Ibid. 19(4):208- 229.

______ & ______. 1972. Ibid. LXXX. A new genus Flyriella. Ibid. 24(2):67- 69.

______ & ______. 1981. Ibid. CCIV. New combinations in Brasilian and Mexican species. Ibid. 48(3):221- 222.

Kornfield, Irving L. 1981. Biological status of the cichlid fishes of Cuatro Cienegas. Proceedings of the Desert Fishes Council 12(1980):96- 97 (abstr.).

______ & Anthony A. Echelle. 1984. Who's tending the flocks. Pp. 251- 254, in Anthony A. Echelle & Irving L. Kornfield (eds.). Evolution of Fish Species Flocks. University of Maine at Orono Press, Orono USA.

______ & Richard K. Koehn. 1975. Genetic variation and speciation in New World cichlids. Evolution 29:427- 437.

______ & Jeffery N. Taylor. 1983. A new species of polymorphic fish, Cichlasoma minckleyi, from Cuatro Cienegas, Mexico (Teleostei: Cichlidae). Proceedings of the Biological Society of Washington 96(2):253- 269.

______, D. C. Smith, P. S. Gagnon & Jeffery N. Taylor. 1982. The cichlid fishes of Cuatro Cienegas, Mexico: Direct evidence of conspecificity among distinct trophic morphs. Evolution 36(4):658- 664.

Kral, R. 1971. A treatment of Abildgaardia, Bulbostylis, and Fimbristylis (Cyperaceae) for North America. Sida 4:57- 227.

LaBounty, James F. 1974. Materials for the revision of cichlids from northern Mexico and southern Texas, USA. (Perciformes: Cichlidae). Doctoral Dissertation. Arizona State University, Tempe USA.

Landye, J[ames]. Jerry. 1981. The conservation of mollusks in Mexico and the USA. Proceedings of the Desert Fishes Council 12(1980):98- 99 (abstr.).

Legler, John M. 1959. A new tortoise, genus Gopherus, from north- central Mexico Publications of the University of Kansas Museum of Natural History 11(5):335- 343.

______. 1960. A new subspecies of slider turtle (Pseudemys scripta) from Coahuila, Mexico. Ibid. 13:73- 84.

______. 1963. Further evidence for intergradation of two Mexican slider turtles. Herpetologica 19(2):142- 143.

Liem, Karel F. & Leslie S. Kaufman. Intraspecific macroevolution: Functional biology of the polymorphic cichlid species Cichlasoma minckleyi. Pp. 203- 215, in Anthony A. Echelle & Irving L. Kornfield (eds.). Evolution of Fish Species Flocks. University of Maine at Orono Press, Orono USA.

Liu, Robert K. 1965. Evolution of male courtship behavior of fishes of the American genus Cyprinodon. American Zoologist 5:635- 636 (abstr.).

______. 1969. The comparative behavior of allopatric species (Teleostei - Cyprinodontidae: Cyprinodon). Doctoral Dissertation. University of California, Los Angeles USA.

*Lopez- Salas, Hector. 19??. Aportación Floristica, Ecológica y Cartográfica al estudio del area de Cuatro Ciénegas, Coahuila. Tesis Profesional, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, México.

______. 1994. Vegetation in Cuatro Ciénegas. Proceedings of the Desert Fishes Council 25(1993):41 (abstr.).

Lozano- Vilano, Maria de Lourdes & Salvador Contreras- Balderas. 1993. Four new species of Cyprinodon from southern Nuevo León, Mexico, with a key to the C. eximius complex (Teleostei: Cyprinodontidae). Ichyological Explorations of Freshwater 4(4):295- 308.

Lysne, Jeanette H. 1967. Histocompatibility studies of the northern platyfish, Xiphophorus gordoni (Poeciliidae). Doctoral Dissertation. Arizona State University, Tempe USA.

Lytle, Glady L. 1972. Cyprinid fishes of the subgenus Cyprinella of Notropis from southeast Texas, USA, and northeast Mexico. Master's Thesis. Arizona State University, Tempe USA.

Mabry, T. J., B. N. Timmermann, N. Heil & A. Michael Powell. 1981. Systematic implications of the flavinoids and chromosomes of Flyriella (Compositae - Eupatorieae). Plant Systematics and Evolution 137:275- 280.

Magniez, G. 1972. Deux Stenasellidae cavernicoles nouveaux de l'Amerique centrale: Mexistenasellus parzefalli, n. sp. et Mexistenasellus wilkensi, n. sp. (Crustacea Isopoda Asellota). International Journal of Speleology 4:19- 31.

______. 1978. Quelques problemes biogeographiques, ecologiques et biologiques de la vie souterraine. Scientifique Bulletin de Bourgogne 3:21- 35.

______. 1981. Biogeographical and paleobiographical problems in stenasellids (Crustacea Isopoda Asellota of underground waters). International Journal of Speleology 11:71- 81.

Maldonado- Koerdell, M. 1958. Nomenclatura, bibliografía y correlación de las formaciones continentales (y algunas marinas) del Mesozoico de México. Boletin Associación Mexicana Geólogos Petroleros 10:287- 308.

______. 1964. Geohistory and paleogeography of Middle America. Pp. 3- 32, in Robert C. West (ed.). Handbook of Middle American Indians, Volume 1. Natural Environment and Early Cultures. The University of Texas Press, Austin USA.

*Mandujano- Zenteno, M. 199?. Estudio del Uso del Agua en el Valle de Cuatro Ciénegas, Coahuila. Licenciatura. Universidad Autónoma Agraria "Antonio Narro," Saltillo, Coahuila, México.

Marsh, Ernest G., Jr. 1937. Biological survey of the Santa Rosa and del Carmen Mountains of northern Coahuila, Mexico. U.S. National Park Service, 73 Pp., 22 photos, 1 map, mimeo.

Marsh, Paul C. (ed.). 1984. Biota of Cuatro Cienegas, Coahuila, Mexico: Proceedings of a Special Symposium. Fourteenth Annual Meeting, Desert Fishes Council, Tempe, Arizona USA, 18- 20 November 1983. Journal of the Arizona- Nevada Academy of Science 19(1).

______. 1984. Preface. Pp. 1- 2, in Ibid.

McBride, G. M. The Land System of Mexico. American Geographical Society Research Series 12:i- xii, 1- 204.

McCoy, Clarence J., Jr. 1970. Hemidactylus turcicus. Catalog of American Amphibians & Reptiles 87.1- 87.2.

______. 1970. Gerrhonotus lugoi, a new alligator lizard from the Cuatro Cienegas basin, Coahuila, Mexico. The Southwestern Naturalist 15(1):37- 44.

______. 1984. Ecological and zoogeographic relationships of amphibians and reptiles of the Cuatro Cienegas basin. Pp. 49- 60, in Paul C. Marsh (ed.). Biota of Cuatro Cienegas, Coahuila, Mexico: Proceedings of a Special Symposium. Fourteenth Annual Meeting, Desert Fishes Council, Tempe, Arizona USA, 18- 20 November 1983. Journal of the Arizona- Nevada Academy of Science 19(1).

______ & Fredrick R. Gehlbach. 1967. Cloacal hemorrhage and the defense display of the colubrid snake Rhinocheilus lecontei. Texas Journal of Science 19(4):349- 352.

______ & W[endell]. L. Minckley. 1969. Sistrurus catenatus (Reptilia: Crotalidae), from the Cuatro Cienegas basin, Coahuila, Mexico. The Southwestern Naturalist 15(1):152- 153.

McCranie, James R. 1980. Drymarchon, Drymarchon corais. Catalog of American Amphibians & Reptiles 267.1- 267.4.

McKee, James W. & Norris W. Jones. 1979. A large Mesozoic fault in Coahuila, Mexico. Geological Society of America Abstracts with Programs 11:476 (abstr.).

______ & ______. 1982. Jurassic, Cretaceous, and Tertiary movement along a fundamental fault at Valle San Marcos, Coahuila, Mexico. Ibid. 14:562 (abstr.).

McKee, James W., Norris W. Jones & Leon E. Long. 1984. History of recurrent activity along a major fault in northeastern Mexico. Geology 12:103- 107.

______, ______ & ______. 1990. Stratigraphy and provenance of strata along the San Marcos fault, central Coahuila, Meico. Geological Society of America Bulletin 102:593- 614.

McNeill, John. 1977. The genus Talinaria. The Southwestern Naturalist 22(3):394- 397.

Martinez del Rio, P. 1954. La comercia lagunera a fines del siglo XVI y principios del XVII según las fuentes escritas. Institutionales Historias, Series Primero, Numero 30. Distrito Federal, México.

Mayden, Richard L. 1985. Phylogenetic studies of the North American minnows, with emphasis on the genus Cyprinella (Teleostei: Cypriniformes). Doctoral Dissertation. University of Kansas, Lawrence USA.

______. 1989. Phylogenetic studies of the North American minnows, with emphasis on the genus Cyprinella (Teleostei: Cypriniformes). Miscellaneous Publications of the University of Kansas Museum of Natural History 80:1- 189.

______ (ed.). 1992. Systematics, Historical Ecology, and North American Freshwater Fishes. Stanford University Press, Stanford, California USA.

______, Brooks M. Burr, Lawrence M. Page & Robert Rush Miller. 1992. The native freshwater fishes of North America. Pp. 827- 863, in Ibid.

Medica, Philip A. 1975. Rhinocheilus, Rhinocheilus lecontei. Catalog of American Amphibians & Reptiles 175.1- 175.4

Meffe, Gary K. 1985. Life history patterns of Gambusia marshi (Poeciliidae) from Cuatro Cienegas, Mexico. Copeia 1985:898- 905.

______. 1987. Life history patterns of Gambusia marshi from Cuatro Cienegas, Mexico. Proceedings of the Desert Fishes Council 17(1985):125 (abstr.).

______. 1989. Fish utilization of springs and Cienegas in the arid southwest. Pp. 475- 485, in R. R. Sharitz & J. W. Gibbons (eds.). Freshwater Wetlands and Wildlife: Perspectives on Natural, Managed, and Degraded Ecosystems. U.S. Department of Energy, Office of Scientific & Technical Information, Oak Ridge, Tennessee USA.

______ & Franklin F. Snelson, Jr. (eds.). 1989. Ecology and Evolution of Livebearing Fishes (Poeciliidae). Prentice Hall, Englewood Cliffs, New Jersey USA.

______ & ______. 1989. An ecological overview of poeciliid fishes. Pp. 13- 23 + lit. cited, in Ibid.

Metcalf, Artie L. & David H. Riskind. 1979. New information concerning Humboltiana taylori Drake, 1951. The Veliger 22(2):179- 181.

Meyer, Edward R. 1972. Late- Quaternary paleoecology of the Cuatro Cienegas basin, Coahuila, Mexico. Doctoral Dissertation. Arizona State University, Tempe USA.

______. 1973. Ibid. Ecology 54:982- 995.

______. 1975. Vegetation and pollen rain in the Cuatro Cienegas basin, Coahuila, Mexico. The Southwestern Naturalist 30(2):215- 224.

Miller, Robert Rush 1968. Two new species of the genus Cyprinodon from the Cuatro Cienegas basin, Coahuila, Mexico. Occasional Papers of the University of Michigan Museum of Zoology 659:1- 15.

______. 1978. Composition and derivation of the native fish fauna of the Chihuahuan Desert region. Pp. 365- 382, in Roland H. Wauer & David Riskind (eds.). Transactions of the Symposium of the Biological Resources of the Chihuahuan Desert Region, United States and Mexico. U.S. National Park Service Transactions and Proceedings Series 3(1977). Government Printing Office, Washington, District of Columbia USA.

______. 1981. Coevolution of deserts and pupfishes (genus Cyprinodon) in the American Southwest. Pp. 39- 94, in Robert J. Naiman & David J. Soltz (eds.). Fishes in North American Deserts. John Wiley & Sons, New York USA.

______ & W[endell]. L. Minckley. 1963. Xiphophorus gordoni, a new species of platyfish from Coahuila, Mexico. Copeia 1963(3):538- 546.

Milstead, William W. 1960. Relict species of the Chihuahuan Desert. The Southwestern Naturalist 5(1):75- 88.

______. 1967. Fossil box turtles (Terrapene) from central North America, and box turtles of eastern Mexico. Copeia 1967(2):168- 179.

______. 1969. Studies on the evolution of box turtles (genus Terrapene). Bulletin of the Florida State Museum 14(1):1- 113.

______ & Donald W. Tinkle. 1967. Terrapene of western Mexico, with comments on the species groups in the genus. Copeia 1967(1):180- 187.

Minckley, Charles O. & William Rinne. 1977. Another massassagua, Sistrurus catenatus (Crotalidae), from Mexico. Texas Journal of Science 23(3):432- 433.

Minckley, W[endell]. L. 1962. Two new species of fishes of the genus Gambusia from northeastern Mexico. Copeia 1962(2):391- 396.

______. 1964. Hybridization of two species of mosquitofishes (Gambusia, Poeciliidae) in the laboratory. Journal of the Arizona Academy of Science 3(2):87- 89.

______. 1966. Coyote predation on aquatic turtles. Journal of Mammalogy 47(1):137.

______. 1969. Environments of the Bolsón of Cuatro Cienegas, Coahuila, Mexico, with special reference to the aquatic biota. Texas Western Press, University of Texas El Paso Science Series 2:1- 65.

______. 1978. Endemic fishes of the Cuatro Cienegas basin, Coahuila, Mexico. Pp. 383- 404, in Roland H. Wauer & David Riskind (eds.). Symposium on the Biological Resources of the Chihuahuan Desert Region, United States and Mexico. U.S. National Park Service Transactions and Proceedings Series 3(1977). Government Printing Office, Washington, District of Columbia USA.

______. 1981. Changes in the Cuatro Cienegas Basin, Coahuila, Mexico, 1958- 1979. Proceedings of the Desert Fishes Council 12(1980):109 (abstr.).

______. 1984. Cuatro Cienegas fishes: Research review and a local test of diversity versus habitat size. Pp. 13- 21, in Paul C. Marsh (ed.). Biota of Cuatro Cienegas, Coahuila, Mexico: Proceedings of a Special Symposium. Fourteenth Annual Meeting, Desert Fishes Council, Tempe, Arizona USA, 18- 20 November 1983. Journal of the Arizona- Nevada Academy of Science 19(1).

______. 1992. Three decades near Cuatro Cienegas, Mexico: Photographic documentation and a plea for area conservation. Pp. 81- 110, in Milton R. Sommerfeld & Dennis M. Kubly (eds.). Limnology and Aquatic Biology of the Southwest, Proceedings of a Special Symposium to Honor Professor Gerald Ainsworth Cole. Thirty- fourth Annual Meeting of the Arizona- Nevada Academy of Science, Tempe, Arizona, 21 April 1990. Ibid. 26(2).

______. 1994. Ecosystem conservation, with special reference to Bolsón de Cuatro Ciénegas, México. Proceedings of the Desert Fishes Council 25(1993):46 (abstr.).

______ & Elena Troxel Arnold. 1969. "Pit digging," a behavioral feeding adaptation in pupfishes (genus Cyprinodon). Ibid. 5(4):254- 257.

______ & David E. Brown. 1983. Wetlands. Pp. 222- 287, 333- 351, + lit. cited, in David E. Brown (ed.). Biotic Communities of the American Southwest. Desert Plants (Boyce Thompson Arboretum, Superior, Arizona, Special Issue 1982) 4(1- 4).

______ & Gerald A. Cole. 1968. Preliminary limnologic information on waters of the Cuatro Cienegas basin, Coahuila, Mexico. The Southwestern Naturalist 13(4):421- 431.

______ & ______. 1968. Speocirolana thermydronis (Crustacea: Isopoda) from north- east Mexico: Re- discovery, habitat, and supplemental description. Tulane Studies in Zoology and Botany 15(1):2- 4.

______ & James E. Deacon (eds.). 1991. Battle Against Extinction: Native Fish Management in the American West. The University of Arizona Press, Tucson USA.

______ & Murray Itzkowitz. 1967. Ecology and effects of intestinal gas accumulation in a pupfish (genus Cyprinodon). Transactions of the American Fisheries Society 96(2):216- 218.

______ & Glady L. Lytle. 1969. Notropis xanthicara, a new cyprinid fish from the Cuatro Cienegas basin, north- central Mexico. Proceedings of the Biological Society of Washington 82(40):491- 501.

______, Gary K. Meffe & David L. Soltz. 1991. Conservation and management of short- lived fishes: Examples from the cyprinodontoids. Pp. 247- 282 + lit. cited, in W[endell]. L. Minckley & James E. Deacon (eds.). Battle Against Extinction: Native Fish Management in the American West. The University of Arizona Press, Tucson USA.

Moore, Jr., H. E. 1943. A revision of the genus Geranium in Mexico and Central America. Contributions of the Gray Herbarium (Harvard University) 146:1- 108, 5 pls.

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______. 1977. Ibid. W. Junk, The Hague, Netherlands.

______ 1978. Is there a Chihuahuan Desert? A quantitative evaluation through the herpetofaunal perspective. Pp. 437- 454, in Roland H. Wauer & David Riskind (eds.). Transactions of the Symposium of the Biological Resources of the Chihuahuan Desert Region, United States and Mexico. U.S. National Park Service Transactions and Proceedings Series 3(1977). Government Printing Office, Washington, District of Columbia USA.

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______. 1942. Notes on the American flora, chiefly Mexican. Ibid. 27:470- 490.

______. 1947. Vegetation and climate in Coahuila, Mexico. Madrono 9(1):33- 57.

Mullerried, F. K. G. 1942. the Mesozoic of Mexico and northwestern Central America. Proceedings of the Eighth American Science Congress 4:124- 147.

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Nesom, Guy L. 1979. A new species of Erigeron (Compositae) from Coahuila. Sida 8(1):65- 70.

______. 1981. Five new species of Mexican Erigeron (Asteraceae). Madrono 28(3); 136- 147.

______. 1992. A new gypsophilic species of Xylothamia (Asteraceae: Astereae) from Cuatro Cienegas area of Coahuila, Mexico. Phytologia 73(4):318.

______. 1992. A new species of Nama (Asteraceae: Astereae) from the Cuatro Cienegas area of Coahuila, Mexico. Phytologia 73:61-63.

Obregon- Barbosa, H. & Salvador Contreras- Balderas. 1988. Una nueva especies de pez del género Xiphophorus del grupo couchianus en Coahuila, México. Publicaciones Biológicas, Facultad Ciencias Biológicas Universidad Autónoma de Nuevo León (México) 2(3):93- 124.

Olson, R. Earl. 1973. Variation in the canyon lizard, Sceloporus merriami Stejneger. Herpetologica 29(2):116- 127.

______. 1978. Biogeographic and ecologic analysis of the herpetofauna in the northern Chihuahuan Desert. Doctoral Dissertation. University of Colorado, Boulder USA.

______. 1979. Sceloporus merriami. Catalog of American Amphibians & Reptiles 227.1- 227.2.

Ono, R. Dana, James D. Williams & Anne Wagner. 1983. Vanishing Fishes of North America. Stone Wall Press, Washington, District of Columbia USA.

Ownbey, Gerald B. 1982. A study of four species of Cirsium native to Mexico. Phytologia 50(5):317- 326.

______ & Donald J. Pinkava. 1980. Cirsium coahuilense (Asteraceae), a new species from northern Mexico. Systematic Botany 5(3):172- 174.

Parfitt, Bruce D. & Donald J. Pinkava. 1978. A new species of Mimosa (Leguminosae) from Coahuila, Mexico. Brittonia 30(2):172- 174.

______ & Donald J. Pinkava. 1988. Nomenclatorial and systematic reassessment of Opuntia engelmannii and O. lindheimeri (Cactaceae). Madrono 35:342- 349.

Parker, William S. 1982. Sceloporus magister. Catalog of American Amphibians & Reptiles 290.1- 290.4.

______ 1982. Masticophis taeniatus. Ibid. 304.1- 304.4.

Parodiz, J. J. 1969. The Tertiary non- marine Mollusca of South America. Annals of the Carnegie Museum 40:1- 242.

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______. 1972. Differences in the external genitalia of female gambusiin fishes. The Southwestern Naturalist 17(3):265- 272.

______. 1972. The function of gonopodial parts and behavioral pattern during copulation by Gambusia (Poeciliidae). Canadian Journal of Zoology 50(7):955- 968.

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Pinkava, Donald J. 1969. Preliminary investigations of the flora and vegetation of the Cuatro Cienegas Basin, Coahuila, Mexico. Proceedings Supplement, Journal of Arizona Academy of Sciences 1969:13 (abstr.).

______. 1976. A new species of cholla (Cactaceae: Opuntia) from Coahuila, Mexico. Madrono 23:292- 294.

______. 1978. Vegetation and flora of the Cuatro Cienegas basin, Coahuila, Mexico. Pp. 327- 333, in Roland H. Wauer & David Riskind (eds.). 1978. Transactions of the Symposium on the Biological Resources of the Chihuahuan Desert Region, United States and Mexico. U.S. National Park Service Transactions and Proceedings Series 3(1977). Government Printing Office, Washington, District of Columbia USA.

______. 1979. Vegetation and flora of the Bolsón of Cuatro Cienegas region, Coahuila, Mexico: I. Boletin de la Sociedad Botánica de México 38(1):35- 73.

______. 1980. Ibid.: II. Ibid. 39(1):107- 127.

______. 1981. Ibid.: III. Ibid. 41(1):127- 151.

______. 1984. Ibid.: IV. Summary, endemism and corrected catalogue. Pp. 23- 48, in Paul C. Marsh (ed.). Biota of Cuatro Cienegas, Coahuila, Mexico: Proceedings of a Special Symposium. Fourteenth Annual Meeting, Desert Fishes Council, Tempe, Arizona USA, 18- 20 November 1983. Journal of the Arizona- Nevada Academy of Science 19(1).

______. 1987. An urgent need for preservation: Cuatro Cienegas. Agave (Quarterly Magazine, Desert Botanical Garden, Phoenix, Arizona USA.) 2(4):7- 9.

______ & David J. Keil. 1977. Chromosome counts of the Compositae from the United States and Mexico. American Journal of Botany 64:680- 686.

______, Lyle Angus McGill & Timothy Reeves. 1977. Chromosome numbers in some cacti of western North America. III. Bulletin of the Torrey Botanical Club 104(1):105- 110.

______ & Bruce D. Parfitt. 1988. Nomenclatural changes in Chihuahuan Desert Opuntia (Cactaceae). Sida 13:125- 130.

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Powell, A. Michael & Billie L. Turner. 1978. Aspects of the plant biology of the gypsum outcrops of the Chihuahuan Desert. Pp. 315- 325, in Roland H. Wauer & David Riskind (eds.). Transactions of the Symposium of the Biological Resources of the Chihuahuan Desert Region, United States and Mexico. United Sates National Park Service Transactions and Proceedings Series 3(1977). Government Printing Office, Washington, District of Columbia USA.

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______, ______, ______ & ______. 1993. Introduction. Pp. xxix- xxxix, in Ibid.

Rauchenberger, Mary. 1989. Annotated list of species of the subfamily Poeciliinae. Pp. 359- 368 + lit. cited, in Gary K. Meffe & Franklin F. Snelson, Jr. (eds.), Ecology and Evolution of Livebearing Fishes (Poeciliidae). Prentice Hall, Englewood Cliffs, New Jersey USA.

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______. 1965. Ibid. II. Cuenca de Cuatro Ciénegas fabulosa riqueza inexplorada. Ibid. 12(3967):2, 3 (19 Augosto 1965).

______. 1965. Ibid. III y ultima. Rico Filon Inexplotado. Ibid. 12(3968):5 (20 Augosto 1965).

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Rollins, Reed C. 1957. Miscellaneous Cruciferae of Mexico and western Texas. Rhodora 59:61- 71.

______. 1982. Theloypodiopsis and Schoencrambe (Cruciferae). Contributions of the Gray Herbarium (Harvard University). 212:71- 102.

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______ & Klaus D. Kallman. 1969. A new fish of the genus Xiphophorus from Guatemala, with remarks on the taxonomy of endemic forms. American Museum Novitates 2379:1- 29.

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Sedlock, Richard L., Fernando Ortega- Gutierrez & Robert C. Speed. 1993. Tectonostratigraphic terranes and tectonic evolution of Mexico. Geological Society of America Special Paper 278:i- vi, 1- 153.

______, ______ & ______. 1993. Part 1: Tectonostratigraphic terranes of Mexico. Pp. 2- 74, in Ibid.

______, Robert C. Speed, and Fernando Ortega- Gutierrez. 1993. Part 2: Tectonic evolution of Mexico, Pp. 74- 153, in Ibid.

Secretaria de Desarrollo Urbano y Ecología. 1983. Proyecto ejecutivo de ordenamiento ecológico para la conservación y aprovechamiento del area recreativa y cultural Poza la Becerra, Cuatro Ciénegas, Coahuila. Secretaria de Desarrollo Urbano y Ecología (SEDUE), Distrito Federal, México.

______. 1987. Plan de manejo integral del Valle de Cuatro Ciénegas, Coahuila. Ibid.

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______. 1944. Rainfall in northern Mexico. Ecology 25(1):105- 111.

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______ & Louis F. Janes. 1958. The taxonomic significance of cloacal bursae in turtles. Transactions of the Kansas Academy of Science 61(1):86- 96.

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______ & Edward H. Taylor. 1945. An annotated checklist and key to the snakes of Mexico. Bulletin of the U.S. National Museum 187:i- iv + 1- 239.

______ & ______. 1948. An annotated checklist and key to the Amphibia of Mexico. Ibid. 194:i- iv + 1- 118.

______ & ______. 1950. An annotated checklist and key to the reptiles of Mexico exclusive of the snakes. Ibid. 199:i- iv + 1- 253.

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______ & Robert Rush Miller. 1986. The evolution of the Rio Grande basin as inferred from its fish fauna. Pp. 457- 486 + lit. cited, in Charles H. Hocutt & Edward O. Wiley (eds.). Zoogeography of North American Freshwater Fishes. John Wiley & Sons, New York USA.

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______. 1967. A remarkable snail fauna from Coahuila, Mexico. Annual Report of the American Malacological Union 33:70- 72 (abstr.).

______ & W[endell]. L. Minckley. 1966. New world for biologists. Pacific Discovery 19:18- 22.

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______. 1964. Tethered nomadism and water territoriality: An hypothesis. Pp. 197- 203, in Fernando Camara- Barbachano (coordinator). Simposio: Desarrollo Agricola de las Comunidades Indigenas y Campesinas. Actas y Memorias Sobretiro del XXXV Congreso Internacional de Americanistas, Distrito Federal, México.

______. 1966. Archaic cultures adjacent to the northeastern frontiers of Meso- america. Pp. 59- 94 in Gordon, F. Ekholm & Gordon R. Willey, (eds.). Handbook of Middle American Indians, Volume 4. Archaeological Frontiers and External Connections. The University of Texas Press, Austin USA.

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______. 1972. Two new gypsophilous species of Gaillardia (Compositae) from northcentral Mexico. The Southwestern Naturalist 17:181- 190.

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______. 1977. New species of Eupatorium (Asteraceae) from north- central Mexico. Wrightia 5(9):352- 354.

______. 1978. Taxonomic study of the scapiform species of Acourtia (Asteraceae: Mutisieae). Phytologia 38(6):456- 468.

______. 1982. Revisional treatment of the Mexican species of Seymeria (Scrophulariaceae). Ibid. 51(6):403- 422.

______. 1990. Taxonomy of Varilla (Asteraceae: Heliantheae). Ibid. 69(1):4- 13.

______ & A. Michael Powell. 1979. Deserts, gypsum and endemism. Pp. 96- 116, in J. R. Goodwin & D. K. Northington (eds.). Arid Land Plant Resources. International Center for Arid and Semi- arid Land Studies (ICASALS), Texas Technological University, Lubbock USA.

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______. 1959. Ibid. Publications of the University of Kansas Museum of Natural History 11(8):443- 516.

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______ & George L. Bradley 1990. Late Quaternary mammals from the Chihuahuan Desert: Paleoecology and latitudinal gradients. Pp. 350- 362, in Ibid.

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Wall, James R., Grover E. Murray & G. Teodoro Diaz. 1961. Geologic occurrence of intrusive gypsum and its effect on structural forms in Coahuila marginal folded province of northeast Mexico. American Association of Petroleum Geologists Bulletin 45:1504- 1522.

Wasserman, A. O. 1970. Scaphiopus couchi. Catalog of American Amphibians & Reptiles 85.1- 85.4

Wauer, Roland H. & David Riskind,(eds.). 1978. Transactions of the Symposium on the Biological Resources of the Chihuahuan Desert Region, United States and Mexico. U.S. National Park Service Transactions and Proceedings Series 3(1977). Government Printing Office, Washington, District of Columbia USA.

Waterfall, U. T. 1959. A revision of Eucnide. Rhodora 61(729):231- 243.

Weaver, W. G. & Francis L. Rose. 1967. Systematics, fossil history, and evolution of the genus Chrysemys. Tulane Studies in Zoology 14(2):63- 73.

Webb, Robert G. 1958. Frogs of the genus Eleutherodactylus from Coahuila, Mexico. Herpetologica 13(4):263- 264.

______. 1960. Notes on some amphibians and reptiles from northern Mexico. Transactions of the Kansas Academy of Science 63(4):289- 298.

______. 1962. North American Recent soft- shelled turtles (family Trionichidae). Publications of the University of Kansas Museum of Natural History 13:429- 611.

______. 1973. Trionyx ater. Catalog of American Amphibians & Reptiles 137.1- 137.2.

______. 1973. Trionyx spiniferus. Ibid. 140.1- 140.4.

______ & John M. Legler. 1960. A new soft- shell turtle (genus Trionyx) from Coahuila, Mexico. University of Kansas Science Bulletin 40:21- 30.

Webb, Robert G., W[endell]. L. Minckley & James E. Craddock. 1963. Remarks on the Coahuilan box turtle, Terrapene coahuila (Testudines, Emydidae). The Southwestern Naturalist 8(1):89- 99.

West, Robert C. (ed.). 1964. Handbook of Middle American Indians, Volume l. Natural Environments and Early Cultures. The University of Texas Press, Austin USA.

West, Robert C. 1964. Surface configuration and associated geology of Middle America. Pp. 33- 83, in Ibid.

______. 1964. The natural regions of Middle America. Pp. 363- 383, in Ibid.

Williams, J. E. 1982. A new species of Sabatia (Gentianaceae) from the Chihuahuan Desert. The Southwestern Naturalist 27(4):379- 382.

Williams, Jack E., David B. Bowman, James E. Brooks, Anthony A. Echelle, Robert J. Edwards, Dean A. Hendrickson & J. Jerry Landye. 1985. Endangered aquatic ecosystems in North American deserts, with a list of vanishing fishes of the region. Journal of the Arizona- Nevada Academy of Sciences 20(1):1- 62.

Williams, Jack E., James E. Johnson, Dean A. Hendrickson, Salvador Contreras- Balderas, James D. Williams, M. Navarro- Mendoza, Donn E. McAllister & James E. Deacon. 1989. Fishes of North America, endangered, threatened, or of special concern: 1989. Fisheries (American Fisheries Society, Bethesda, Maryland USA.) 14(1):2- 20.

Williams, Kenneth L. 1960. Captive box turtles, Terrapene coahuila. Herpetologica 16(2):1- 2.

______. 1961. Aberrant mud turtles, Kinosternon flavescens, from Coahuila, Mexico. Ibid. 17(1):72.

______ & Paul Han. 1964. A comparison of the density of Terrapene coahuila and T. carolina. Journal of the Ohio Herpetological Society 4(4):105.

Williams, Kenneth L., Hobart M. Smith & Peter S. Chrapliwy. 1960. Turtles and lizards from northern Mexico. Transactions of the Illinois State Academy of Science 53:36- 45.

Williams, Stanley C. 1968. Scorpions from northern Mexico: Five new species of Vejovis from Coahuila, Mexico. Occasional Papers of the California Academy of Science 68:1- 24.

Wilson, Larry David. 1966. The range of the Rio Grande racer in Mexico and the status of Coluber oaxaca (Jan). Herpetologica 22(1):42- 47.

______. 1970. The coachwhip snake, Masticophis flagellum (Shaw): Taxonomy and distribution. Tulane Studies in Zoology & Botany 16(2):31- 99.

______. 1975. Masticophis flagellum. Catalog of American Amphibians & Reptiles 145.1- 145.4.

Winokur, Robert M. 1968. The morphology and relationships of the soft- shelled turtles of the Cuatro Cienegas basin, Coahuila, Mexico. Master's Thesis. Arizona State University, Tempe USA.

Wood, P. 1975. A nature walk in the Cuatro Cienegas basin. Pp. 68- 83, in The Sierra Madre. The American Wilderness. Time- Life Books, New York, USA.

Worthington, Richard D. 1980. Elaphe subocularis. Catalog of American Amphibians & Reptiles 268.1- 268.2.

Wright, H. E., Jr. & David G. Frey (eds.). 1965. The Quaternary of the United States, Princeton University Press, Princeton, New Jersey USA.

Winsborough, Barbara M. 1986. Diatoms in modern lacustrine stromatolites- - role in carbonate production. Abstracts with Programs, Annual Meeting and Exposition of the Geological Society of America 1986:791 (abstr.).

______. 1990. Some Ecological Aspects of Modern Freshwater Stromatolites in Lakes and Streams of the Cuatro Cienegas Basin, Coahuila, Mexico. Doctoral Dissertation. The University of Texas, Austin USA.

______. 1994. Ecological aspects of stromatolites and related biogenic structures in lakes and streams of the Cuatro Ciénegas basin, Coahuila, México. Proceedings of the Desert Fishes Council 25(1993):45 (abstr.).

______ & Jacob- Sebastian Seeler. 1986. The role of diatoms in stromatolite growth: Two examples from modern freshwater settings. Journal of Phycology 23(1):195- 201.

______, ______, Stjepko Golubic, Robert L. Folk & Bassett M. Maguire. 1994. Recent freshwater lacustrine stromatolites, stomatolitic mats and oncoids from northeastern Mexico. In press, in J. Sarfati & & C. L. V. Monty (eds.). Phanaerozoic Stromatolites, Volume 2. Elsevier Science Publishing, New York USA.

Wright, John W. & C. H. Lowe. 1993. Synopsis of the subspecies of the little striped whiptail lizard, Cnemidophorus inornatus Baird. Journal of the Arizona- Nevada Academy of Science 27(1):129- 157.

Zamudio-Valdez, Andres & G. Rodriguez-Almaraz. 1994. The copepods of Cuatro Ciénegas, Coahuila (Crustacea: Copepodoa) with notes on their distributions among distinct habitats and microhabitats. Proceedings of the Desert Fishes Council 25(1993):42 (abstr.).

Zanoni, Thomas A. & Robert P. Adams. 1980. The genus Juniperus (Cupressaceae) in Mexico and Guatemala: Synonymy, key, and distribution of the taxa. Boletin de la Sociedad Botánica de México 38:83- 121.

Zug, George R. 1966. The penial morphology and the relationships of crytodiran turtles. Occasional Papers of the University of Michigan Museum of Zoology 647:1- 24.

Zweifel, Richard G. 1956. A survey of the frogs of the augusti group, genus Eleutherodactylus. American Museum Novitates 1813:1- 35.

______. 1958. The lizard Eumeces tetragrammus in Coahuila, Mexico. Herpetologica 14(3):175.

______. 1959. Cnemidophorus tigris variolosus, a revived subspecies of whiptail lizard from Mexico. The Southwestern Naturalist 3(1):94- 101.

______. 1967. Eleutherodactylus augusti. Catalog of American Amphibians & Reptiles 41.1- 41.4.

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