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Procambarus can be distinguished from other genera of crayfish by the form of the first pleopod in males, which typically has three or more processes at the tip, compared to two or fewer in Faxonius and Cambarus.
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.
P. Procambarus; Procambarus (Procambarus) Procambarus acherontis; Procambarus acutus; Procambarus alleni; Procambarus angustatus; Procambarus apalachicolae
Cambarus Erichson, 1846 Creaserinus Hobbs, 1973 Distocambarus Hobbs, 1981 Fallicambarus Hobbs, 1969 Faxonella Creaser, 1933 Faxonius Ortmann, 1905 Hobbseus Fitzpatrick & Payne, 1968 Lacunicambarus Hobbs, 1969 Orconectes Cope, 1872 Procambarus Ortmann, 1905 Troglocambarus Hobbs, 1942
About 70–80% of crayfish produced in Louisiana are Procambarus clarkii (red swamp crawfish), with the remaining 20–30% being Procambarus zonangulus (white river crawfish). [52] Optimum dietary nutritional requirement of freshwater crayfish, or crayfish nutrient specifications are now available for aquaculture feed producers [53]
Procambarus clarkii, known variously as the red swamp crayfish, Louisiana crawfish or mudbug, [3] is a species of cambarid crayfish native to freshwater bodies of northern Mexico, and southern and southeastern United States, but also introduced elsewhere (both in North America and other continents), where it is often an invasive pest.
Procambarus alleni ( Faxon , 1884) [ 3 ] The Everglades crayfish [ 2 ] ( Procambarus alleni ), sometimes called the Florida crayfish , the blue crayfish , the electric blue crayfish , or the sapphire crayfish , is a species of freshwater crayfish endemic to Florida in the United States.
Procambarus acutus, the white river crayfish, is a species of crayfish in the family Cambaridae. It is found in North America and Europe. [3] [4] [1] [5] The IUCN conservation status of Procambarus acutus is "LC", least concern, with no immediate threat to the species' survival. The IUCN status was reviewed in 2010.