endangered
Propst, D. L. 1994. Federally listed fish species collected during 1994. New Mexico Department of Game and Fish. Santa Fe, New Mexico. 6 p.
Montoya, B. 1993.Tables and maps for aquatic species collected during the calendar year1993. New Mexico Department of Game and Fish. Santa Fe, New Mexico. 7 p.
Worthington, R. D. 1981. Locations of two populations of Sneed's cactus in the Anthony Gap area. University of Texas. Department of Biological Sciences. El Paso, Texas 79968. 6 pages.
Smithsonian Institution. 1980. Draft abstracts on rare plants. Unpublished. Perhaps 100 individual abstracts.
Spellenberg, R. 1978. Review of federally "threatened" or "endangered" plant species in the Las Cruces district of the Bureau of Land Management, U.S. Dept. of the Interior. June 1978.
U.S. Fish and Wildlife Service (USFWS). 1978. Seven Snails Listed as Endangered or Threatened. Dept. of Interior News Release, July 3, 1978.
U.S. Fish and Wildlife Service. 2005. Endangered and threatened wildlife and plants; listing Roswell Springsnail, Koster's Springsnail, Pecos Assiminea, and Noel's Amphipod as endangered with critical habitat. Federal Register 50 CFR Part 17: RIN 1018-AI1
Paxton, E, M. Sogge, T. McCarthey, and P. Keim. 2002. Nestling sex ratio in the Southwestern willow flycatcher. The Condor. 104:877-881.
Colorado Native Plant Society. 1989. Rare plants of Colorado. Rocky Mountain Nature Association, Colorado Native Plant Society, Estes Park, Colorado. 73 pp.
U.S. Fish and Wildlife Service. 2002. Holy ghost ipomopsis (Ipomopsis sancti-spiritus) recovery plan. U.S. Fish and Wildlife Service, Albuquerque, New Mexico.. 51 p.