Allocrangonyx

Allocrangonyx
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Malacostraca
Order: Amphipoda
Family: Allocrangonyctidae
Holsinger, 1989 [2]
Genus: Allocrangonyx
Schellenberg, 1936 [1]
Species
  • Allocrangonyx pellucidus (Mackin, 1935)
  • Allocrangonyx hubrichti Holsinger, 1971
Allocrangonyx pellucidus (Oklahoma Cave Amphipod) in a cave spring in the Arbuckle mountains of Oklahoma.

Allocrangonyx is a genus of troglobitic amphipod crustaceans from the South Central United States.[3] The two species are both listed as vulnerable on the IUCN Red List.[4][5] The animals are blind and unpigmented. During the male's development, the outer ramus of the third uropod differentiates into secondary segments and grows to a length greater than the animal's body length.[6]

Allocrangonyx pellucidus lives in springs adjacent to Turner Falls.
  1. ^ "Allocrangonyx Schellenberg, 1936". Integrated Taxonomic Information System.
  2. ^ "Allocrangonyctidae Holsinger, 1989". Integrated Taxonomic Information System.
  3. ^ John R. Holsinger (1971). "A new species of the subterranean amphipod genus Allocrangonyx (Gammaridae), with a redescription of the genus and remarks on its zoogeography". International Journal of Speleology. 3 (3/4): 317–331. doi:10.5038/1827-806x.3.3.11. Archived from the original on 2011-07-22. Retrieved 2010-04-14.
  4. ^ Inland Water Crustacean Specialist Group (1996). "Allocrangonyx hubrichti". IUCN Red List of Threatened Species. 1996: e.T873A13087606. doi:10.2305/IUCN.UK.1996.RLTS.T873A13087606.en.
  5. ^ Inland Water Crustacean Specialist Group (1996). "Allocrangonyx pellucidus". IUCN Red List of Threatened Species. 1996: e.T874A13087705. doi:10.2305/IUCN.UK.1996.RLTS.T874A13087705.en.
  6. ^ Cite error: The named reference Lewis was invoked but never defined (see the help page).