Pyrgulopsis roswellensis

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. 2007. Spreadsheet on occurrences of Noel's amphiphod, Pecos assiminea, Koster's springsnail, and Roswell springsnail.

Mehlhop, P. 1993. Field survey to Spring Canyon, Alamosa Warm Springs on July 1 and 2, 1993.

• Gastropoda
• Pyrgulopsis roswellensis
• Pseudotryonia alamosae
• ALAMOSA SPRINGSNAIL

Lang, B.K. 1998. Status of Aquatic Mollusks of New Mexico, Performance Report to the U.S. Fish and Wildlife Service, Section 6 E-20-6. New Mexico Department of Game and Fish, 88 pp.

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

Arritt, S. 1998. Imperiled Invertebrates. New Mexico Partners: Conserving endangered species. 3(1):8-16.

Noel, M.S. 1954. Animal Ecology of a New Mexico springbrook. Hydrobiologia 6:120-135.

• Pyrgulopsis roswellensis
• Gastropoda

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.