
NatureServe Explorer Species Reports — NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and Canada. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.
ITIS Reports — ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of North America and the world.
FWS Digital Media Library — The U.S. Fish and Wildlife Service’s National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.
| Status | Date Listed | Lead Region | Where Listed | 
|---|---|---|---|
| Endangered | 08/09/2005 | Southwest Region (Region 2) | Wherever found | 
To learn more about critical habitat please see http://ecos.fws.gov/crithab
| 02/11/2009 | 74 FR 6917 6919 | 5-Year Reviews of 23 Southwestern Species | 
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| 02/11/2009 | 74 FR 6917 6919 | 5-Year Reviews of 23 Southwestern Species | 
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| 12/28/2010 | Four Bitter Lake Invertebrates 5-Year Reviews | 
| 06/07/2011 | 76 FR 33036 33064 | Designation of Critical Habitat for Roswell Springsnail, Koster's Springsnail, Noel's Amphipod, and Pecos Assiminea; Final Rule | Final Rule | Final designated | 
| 06/22/2010 | 75 FR 35375 35397 | Designation of Critical Habitat for Roswell Springsnail, Koster's Springsnail, Noel's Amphipod, and Pecos Assiminea: Proposed rule | Proposed Rule | Not Required | 
| 02/12/2002 | 67 FR 6459 6479 | ETWP; Listing Roswell springsnail, Koster's tryonia, Pecos assiminea, and Noel's amphipod as Endangered With Critical Habitat | Proposed Rule | Not Required | 
