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Faxonius Neglectus Chaenodactylus
''Faxonius'' is a genus of crayfish, freshwater crayfish in the family Cambaridae. There are more than 90 described species in ''Faxonius''. It includes the rusty crayfish, an invasive species in North America, and three species, ''F. virilis'', ''F. immunis'', and ''F. limosus'', that are invasive to Europe. This genus was formerly considered a subgenus of ''Orconectes''. Several former ''Orconectes'' species were added to this genus in 2017, leaving only the troglobite, cave dwelling species unchanged, however ''F. stygocaneyi'' was reallocated, even though it lives in caves. Species These species belong to the genus ''Faxonius'': * ''Faxonius acares'' (Joseph F. Fitzpatrick Jr., Fitzpatrick, 1965) * ''Faxonius alabamensis'' (Walter Faxon, Faxon, 1884) * ''Faxonius alluvius'' (Simon & McMurray, 2014) * ''Faxonius barrenensis'' (Rhoades, 1944) * ''Faxonius bellator'' Bloom, McCall, Schuster & Blanton, 2019 * ''Faxonius bisectus'' (Rhoades, 1944) * ''Faxonius burri'' (Taylor & ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crayfish
Crayfish are freshwater crustaceans belonging to the infraorder Astacidea, which also contains lobsters. Taxonomically, they are members of the superfamilies Astacoidea and Parastacoidea. They breathe through feather-like gills. Some species are found in brooks and streams, where fresh water is running, while others thrive in swamps, ditches, and paddy fields. Most crayfish cannot tolerate polluted water, although some species, such as '' Procambarus clarkii'', are hardier. Crayfish feed on animals and plants, either living or decomposing, and detritus. The term "crayfish" is applied to saltwater species in some countries. Terminology The name "crayfish" comes from the Old French word ' ( Modern French '). The word has been modified to "crayfish" by association with "fish" ( French language">Modern French '). The word has been modified to "crayfish" by association with "fish" ( American variant "crawfish" is similarly derived. Some kinds of crayfish are known lo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |