Procambarus
| Procambarus | |
|---|---|
 |
|
| Procambarus clarkii | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Crustacea |
| Class: | Malacostraca |
| Order: | Decapoda |
| Family: | Cambaridae |
| Genus: |
Procambarus Ortmann, 1905 |
| Type species | |
|
Procambarus digueti Bouvier, 1897 |
|
Procambarus is a genus of crayfish in the family Cambaridae, all native to North and Central America. It includes a number of troglobitic species, and the parthenogenetic marmorkrebs. Originally described as a subgenus for four species, it now contains 160 species in 16 subgenera.
The majority of the diversity is found in the southeastern United States, but the genus extends as far south as Belize and Guatemala, and as far east as Cuba. Subgenus Ortmannicus is the most widespread, with the range of Procambarus acutus extending as far north as the Great Lakes and New England, as well as south into northeastern Mexico; the subgenus Girardella also extends from the Great Lakes to Mexico, but is distributed further west than Ortmannicus.Scapulicambarus and Pennides are widespread in the southeastern United States, where Remoticambarus also lives, further west (Texas and Louisiana) than Leconticambarus which is centered on Florida and neighboring states. The subgenus Austrocambarus has the most southerly distribution, being found in Cuba and parts of Central America from Mexico to Belize. The other subgenera are more restricted in their distributions, including three endemic to central Mexico, and six endemic to small areas in the United States.
Many species of Procambarus have been introduced to other continents, where they are frequently categorized as invasive species.
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 Orconectes and Cambarus.
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Wikipedia