Cambarus is a large and diverse genus of crayfish from the United States and Canada. The adults range in size from about 5 cm (2.0 in) up to approximately 15 cm (5.9 in).
Drymarchon is a genus of large nonvenomous colubrid snakes, commonly known as indigo snakes or cribos, found in the Southeastern United States, Central America, and South America.
The Houston toad, formerly Bufo houstonensis, is an endangered species of amphibian that is endemic to Texas in the United States. This toad was discovered in the late 1940s and named in 1953. It was among the first amphibians added to the United States List of Endangered Native Fish and Wildlife and is currently protected by the Endangered Species Act of 1973 as an endangered species. The Houston toad was placed as "endangered" on the IUCN Red List of Threatened Species from 1986 to 2022, and has worsened to "critically endangered" since then, with fewer than 250 mature individuals believed to remain in the wild as of 2021. Their kind is threatened every day as they continue to suffer from a loss of habitat, extreme drought, and massive wildfires. Their typical life expectancy is at least 3 years but it may exceed this number.
The Everglades crayfish, 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. Its natural range is the area east of St. Johns River and all of Florida from Levy County and Marion County southwards, as well as on some of the Florida Keys. It is included on the IUCN Red List as a species of Least Concern. The blue crayfish is frequently kept in a freshwater aquaria. In the wild, this species varies from brown-tan to blue, but an aquarium strain has been selectively bred to achieve a brilliant cobalt blue color.
Cambarus aculabrum is a rare species of cave-dwelling crayfish known by the common name Benton county cave crayfish. It is native to Arkansas in the United States, where it is known from only four locations. It is a federally listed endangered species of the United States.
Creaserinus burrisi, the burrowing bog crayfish, is a species of crayfish in the family Cambaridae. It is found in a limited range in southeastern Mississippi and southwestern Alabama.
Fallicambarus harpi, the Ouachita burrowing crayfish, is a species of crayfish in the family Cambaridae. It is known only in southwest Arkansas. The species is a primary burrower, located in low lying seepage areas in pastures, yards and lawns.
Creaserinus hortoni, the Hatchie burrowing crayfish, is a species of crayfish in the family Cambaridae. It is found in western Tennessee and northern Mississippi.
Fallicambarus petilicarpus, the slenderwrist burrowing crayfish, is a species of crayfish in the family Cambaridae. It is found in southern Arkansas and northern Louisiana.
Fallicambarus strawni, the saline burrowing crayfish, is a species of crayfish in the family Cambaridae. It is found in southeastern Oklahoma and western Arkansas.
Procambarus plumimanus is a species of crayfish in the family Cambaridae. It is endemic to North Carolina. It is known from several locations, where it is often abundant. It is known commonly as the Croatan crayfish.
Lacunicambarus diogenes, the devil crayfish,devil crawfish, 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.
Fallicambarus tenuis is a species of crayfish in the genus Fallicambarus in the family Cambaridae. It was the only species in the subgenus Procambarus (Tenuicambarus) before DNA analysis suggested a reclassification.
Fallicambarus is a genus of crayfish in the family Cambaridae from the United States and Canada. It includes 12 species, of which one is on the IUCN Red List as a vulnerable species (VU) and one as an endangered species (EN). The species of this genus are all restricted to three states or fewer, from Texas and Oklahoma east to Florida.
The Big Sandy crayfish, Cambarus callainus, are freshwater crustaceans of the family Cambaridae. They are found in the streams and rivers of Appalachia in Virginia, West Virginia, and Kentucky, in what is known as the Big Sandy watershed. Populations are often mistaken with Cambarus veteranus, but morphological and genetic data suggest that these are separate taxa; however, both are protected under the Endangered Species Act. There is very little information available on the Big Sandy crayfish because it is a relatively new species.
Faxonius immunis is a species of crayfish in the family Cambaridae. It is native to North America and it is an introduced species in Europe, where it lives along the Upper Rhine. Its common names include calico crayfish and papershell crayfish.
The Galápagos ghostshark is a chimaera species in the family Chimaeridae, likely endemic to the Galápagos Islands. It was discovered by John E. McCosker in 1995 and described in 2006, scientifically named in honor of McCosker. This chimaera has a brown compressed, elongate body. The holotype and paratype of the species, both juvenile females, had a total length of 38.1 centimetres (15.0 in) and 22.7 centimetres (8.9 in), respectively. It lives in rocky habitats close to the sea floor, in waters about 395–510 metres (1,296–1,673 ft) deep. It is listed as least concern on the IUCN Red List.
Cambarus acuminatus, the acuminate crayfish, is a species of crayfish in the family Cambaridae. It is found in eastern North America.
Cambarus monongalensis, the blue crayfish or Monongahela crayfish, is a species of burrowing crayfish native to Pennsylvania and West Virginia. It has also been found recently in Ohio. The common name refers to the Monongahela River, with the first specimens being collected from Edgewood Park, Allegheny County, Pennsylvania. It is included on the IUCN Red List as a species of Least Concern.
Cambarus gentryi, the linear cobalt crayfish, is a small species of burrowing crayfish. One of 115 species in the genus Cambarus, it is notable for its deep blue carapace. It is endemic to Tennessee in the United States.
