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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.
Big Sandy crayfish are opportunistic omnivores, as they eat both living and dead plants and animals available in their habitats.They act as an important link in the food chain of their ecosystem, as they eat a wide variety of decaying and living small organisms and are then eaten by predators including mammals, sport fish, reptiles, birds, and amphibians.
Size comparison with a human hand. It is unusual in that it lives in silty streams, rather than the clear water usually preferred by crayfish. [6] Like Pacifastacus leniusculus, another invasive North American crayfish, F. limosus carries crayfish plague and is a threat to native European crayfish. [7] [8] Kamberkrebs, cooked
Cambarus carinirostris is moderate sized, with a mean total carapace length of 29.1 millimetres (1.15 in) reported. Dorsally, it is brown or beige, with crimson borders on the abdominal terga. while the ventral surfaces and pereiopods are cream or white in color.
Juvenile Cambarellus patzcuarensis, about a week after being detached from their mother.The diameter of the cup is 8.9 centimetres (approximately 3.5 inches) and was used for this photo session only.
Cambarus acuminatus was first described in 1884 by Walter Faxon, then a curator of the Invertebrate Department of the Museum of Comparative Zoology (MCZ) at Harvard University, using specimens collected in 1877 from the Saluda River near Greenville, South Carolina by ichthyologist David Starr Jordan and a student named Alembert Brayton.
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 obesus Hagen, 1870 Lacunicambarus diogenes , the devil crayfish , devil crawfish , [ 1 ] [ 2 ] is a species of North American burrowing crayfish found in the Atlantic Coastal Plain and parts of the Piedmont ecoregion from New Jersey, Pennsylvania, Delaware, Maryland, Virginia, North Carolina, South Carolina, Louisiana, and Georgia.