2009
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.
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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.
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.
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.
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.
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.
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-
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.