Cambarellus
Cambarellus is a genus of small freshwater crayfish in the family Cambaridae. The 19 species are found in Mexico and the Gulf States of the United States. Among the Mexican species, C. areolatus, C. patzcuarensis, and C. prolixus are considered seriously threatened by the IUCN, and C. alvarezi is already extinct. C. chihuahuae was also believed to be extinct until rediscovered in 2012. C. alvarezi and four undescribed, extinct Cambarellus species were restricted to desert spring systems in southwestern Nuevo León; each one shared its habitat with a Cyprinodon pupfish.
An orange form of C. patzcuarensis is regularly seen in the freshwater aquarium trade.Species
The genus contains the following species:
;Subgenus Cambarellus
- Cambarellus alvarezi Villalobos, 1952
- Cambarellus areolatus
- Cambarellus chapalanus
- Cambarellus chihuahuae Hobbs, 1980
- Cambarellus montezumae
- Cambarellus occidentalis
- Cambarellus patzcuarensis Villalobos, 1943
- Cambarellus prolixus Villalobos-Figueroa & Hobbs, 1981
- Cambarellus zacapuensis Pedraza-Lara & Doadrio, 2015
- Cambarellus zempoalensis Villalobos, 1943
;Subgenus Cambarellus
- Cambarellus blacki Hobbs, 1980
- Cambarellus diminutus Hobbs, 1945
- Cambarellus lesliei Fitzpatrick & Laning, 1976
- Cambarellus ninae Hobbs, 1950
- Cambarellus puer Hobbs, 1945
- Cambarellus rotatus Schuster & Kendrick, 2017
- Cambarellus schmitti Hobbs, 1942
- Cambarellus shufeldtii
- Cambarellus texanus Albaugh & Black, 1973
