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Pyrgulopsis neomexicana

Year
1991
Citation

U.S. Fish and Wildlife Service (USFW). 1991. Endangered and threatened wildlife and plants; final rule to list the Alamosa springsnail and the Socorro springsnail as endangered. Federal Register 58 (189): 49646-49649. 30 September 1991.

Reference Code
A91FWS01NMUS