Tags: Crustacean.
Gammarus desperatus is a species of amphipod crustacean in the family Gammaridae.G. desperatus was formerly found at three sites in New Mexico but it has since been extirpated from two of these sites. G. desperatus only survives within Bitter Lake National Wildlife Refuge. It is listed as critically endangered on the IUCN Red List and as an endangered species under the United States Endangered Species Act.