1998
Lang, B.K. 1998. New Mexico Endangered Invertebrates: monitoring and management. Performance Report to U.S. Fish and Wildlife Service, Section 6 E-37-3. 47p.
R98LAN03NMUS
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Pyrgulopsis neomexicana
Lang, B.K. 1998. New Mexico Endangered Invertebrates: monitoring and management. Performance Report to U.S. Fish and Wildlife Service, Section 6 E-37-3. 47p.
Lang, B.K. 1997. New Mexico Endangered Invertebrates: monitoring and management. Performance Report to U.S. Fish and Wildlife Service, Section 6 E-37-2. 7p.
Lang, B.K. 2008. New Mexico Endangered Invertebrates: monitoring and management. Performance Report to U.S. Fish and Wildlife Service, Section 6 E-37-10. 73 p.
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.
Arritt, S. 1998. Imperiled Invertebrates. New Mexico Partners: Conserving endangered species. 3(1):8-16.