Table 8

Summary of the deployment of hydrobioid species among the various habitats in the basin. "++" = common, "+" = rare.

		Small Springs	Small Springs
Species	Large Springs and outflows	Head	Outflow	Marshes, Pools, Lakes
*Mexipyrgus churinceanus Taylor 1966a	common	na	na	na
*Mexithauma quadripaludium Taylor 1966a	common	na	na	na
*Nymphophilus minckleyi Taylor 1966a	common	na	na	na
*Cochliopina milleri Taylor 1966a	rare	na	na	na
*Duragonella coahuilae Taylor 1966a	rare	common	common	common
"Stobia" n. sp.	na	common	common	na
*Paludiscala caramba Taylor 1966a	na	common	rare	na
*Coahuilix hubbsi Taylor 1966a	na	rare	rare	na
*Coahuilix n. sp.	na	rare	rare	na
Orygocerus(?) sp	na	rare	na	na