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The genus Cambarus is the second largest freshwater crayfish genus inhabiting the Northern Hemisphere, with only sixty fewer species than the genus Procambarus. [2] Though Cambarus are varied across species, the two terminal elements that make up the male form I gonopod form ninety degree angles with the central appendage, allowing for their identification.
Cambarus asperimanus, the mitten crayfish, [2] is a species of crayfish in the family Cambaridae. It is found in North America. [3] [4] [1] [5] The IUCN conservation status of Cambarus asperimanus is "LC", least concern, with no immediate threat to the species' survival. The IUCN status was reviewed in 2010.
The diameter of the cup is 8.9 centimetres (approximately 3.5 inches) and was used for this photo session only. Crayfish are cannibalistic, and siblings can't be kept together in small containers for any lengthy period of time. It measures 4–5 centimetres (1.6–2.0 in) in total length, including claws.
The Big Sandy crayfish is listed as threatened wherever found under the ESA. [2] It was originally reviewed for listing in 1991 when it was known as C. veteranus. The crayfish was proposed to be listed as endangered with C. veteranus on 7 April 2015, which is when the two new species were distinguished in the ESA (ECOS 12 month finding). [6]
Cambarus robustus, known generally as the robust crayfish or Big Water crayfish, [2] is a species of crayfish in the family Cambaridae. It is found in North America. [3] [4] [1] [5] The IUCN conservation status of Cambarus robustus is "LC", least concern, with no immediate threat to the species' survival. The population is stable.
Cambarus howardi, the Chattahoochee crayfish, [2] is a species of crayfish in the family Cambaridae.It is found in North America. [1] [3] [4] The common name refers to the Chattahoochee River, where the first specimens were collected.
Cambarus obeyensis, the Obey crayfish, is a species of crayfish in the family Cambaridae. It is found in North America. [2] [3] [1] The IUCN conservation status of Cambarus obeyensis is "CR", critically endangered. The species faces an extremely high risk of extinction in the immediate future. The population is decreasing.
Cambarus strigosus, the lean crayfish, [2] is a species of crayfish in the family Cambaridae. It is found in North America. [3] [4] [1] References