Tryonia kosteri

New Mexico Department of Game and Fish. September, 2000. Threatened and endangered species of New Mexico, biennial review and recommendations. Revised Draft. 139 p.

Taylor, D.W. 1987. Fresh-water Molluscs from New Mexico and Vicinity. New Mexico Bureau of Mines and Mineral Resources. Bulletin 116. 50pp.

United States Fish and Wildlife Service. 2002. Endangered and threatened wildlife and plants; Review of species that are candidates or proposed for listing as endangered or threatened; Annuals notice of findings on recycled petitions; Annual description o

Lang, B. 2002. Status of Aquatic Mollusks of New Mexico. Completion Report to U.S. Fish and Wildlife Service, Section 6 E-20-9. New Mexico Department of Game and Fish. Santa Fe, New Mexico. 36 p.

Mehlhop, P. 1993. Establishment of a rare mollusc inventory and monitoring program for New Mexico. Unpubl. progress report, year II, to New Mexico Department of Game and Fish. Contract no. 80-519-52, amendment 1.

Lang, B.K. 2009. Macroinvertebrates of Bitter Lake National Wildlife Refuge. Report to U.S. Fish and Wildlife Service, Section 6 E-56-6. 25p.

• Assiminea pecos
• Koster's springsnail
• Pyrgulopsis roswellensis
• Pyrgulopsis pecosensis
• Tryonia kosteri
• Pyrgulopsis chupaderae
• Pyrgulopsis gilae
• Pyrgulopsis thermalis

Lang, B.K. 2010. Macroinvertebrates of Bitter Lake National Wildlife Refuge. Report to U.S. Fish and Wildlife Service, Section 6 E-56-7. 39p.

• Assiminea pecos
• Tryonia kosteri
• Pyrgulopsis roswellensis
• Pyrgulopsis pecosensis
• Pyrgulopsis chupaderae
• Pyrgulopsis gilae
• Pyrgulopsis thermalis

Lang, B.K. 2011. Macroinvertebrates of Bitter Lake National Wildlife Refuge. Final report to U.S. Fish and Wildlife Service, Section 6 E-56-7(2). 89p.

• Pyrgulopsis thermalis
• Pyrgulopsis gilae
• Pyrgulopsis chupaderae
• Pyrgulopsis pecosensis
• Pyrgulopsis roswellensis
• Tryonia kosteri

U.S. Fish and Wildlife Service (USFWS). 12 February 2002. Endangered and threatened wildlife and plants; Listing Roswell Springsnail, Koster's tryonia, Pecos assiminea, and Noel's amphipod as endangered with critical habitat. Federal Register 67(29):6459-

• Tryonia kosteri
• Assiminea pecos
• Gammarus desperatus
• Pyrgulopsis roswellensis

U.S. Fish and Wildlife Service (USFWS). 8 January 2001. Endangered and threatened wildlife and plants: Annual notice of findings on recycled petitions. Federal Register 66(5):1295-1300.