Gecarcinus quadratus, known as the red land crab, whitespot crab, Halloween crab, moon crab, Halloween moon crab, mouthless crab, or harlequin land crab, is a colourful land crab from the family Gecarcinidae.
Pseudothelphusidae is a family of freshwater crabs found chiefly in mountain streams in the Neotropics. They are believed to have originated in the Greater Antilles and then crossed to Central America via a Pliocene land bridge. Some species of this family are troglobitic.
Johngarthia is a genus of crabs in the land crab family Gecarcinidae, formerly included in the genus Gecarcinus, and containing six species. The genus bears the name of John S. Garth, a 20th century naturalist who specialized in crabs and other arthropods.
Hainanpotamon vietnamicum is a species of crab. Originally described as a species of Geothelphusa, it is now treated as part of the genus Hainanpotamon, although it has also been suggested as a member of Tiwaripotamon. It is only known from a single locality in Cúc Phương National Park, Ninh Bình Province, Vietnam.
Bellia picta is a species of crab that lives around the coasts of South America, and the only species in the genus Bellia. On the Atlantic coast, it is found in Rio Grande do Sul, Brazil, while on the Pacific coast, it is found off Peru and Chile. It probably lives in burrows and is a filter feeder.
Disparithelphusa pecki is a species of freshwater crab in the family Pseudothelphusidae, and the only species in the genus Disparithelphusa.
Smalleyus is a genus of crabs in the family Pseudothelphusidae, containing the single species Smalleyus tricristatus.
Kingsleya is a genus of crabs in the family Pseudothelphusidae, containing the following species:
Brasiliothelphusa tapajoensis is a species of freshwater crabs in the family Pseudothelphusidae, and the only species in the genus Brasiliothelphusa. It was described in 1986 from specimens caught in the Rio Tapajós in the state of Pará, Brazil. It is listed as Data Deficient on the IUCN Red List.
Epilobocera is a genus of crabs in the family Epiloboceridae. It is the only genus in its family; this taxonomic arrangement follows the revision of the family Pseudothelphusidae by Álvarez and colleagues.
Neoepilobocera gertraudae is a species of cave-dwelling crab from Cuba.
Camptophallus botti is a species of crab in the family Pseudothelphusidae, and the only species in the genus Camptophallus. It is endemic to the Nicaraguan departments of Matagalpa and Jinotega.
Chaceus is a genus of crabs in the family Pseudothelphusidae, containing the following species:
Eidocamptophallus chacei is a species of crab in the family Pseudothelphusidae, and the only species in the genus Eidocamptophallus.
Elsalvadoria is a genus of crabs in the family Pseudothelphusidae, containing the following species:
Oedothelphusa is a genus of crabs in the family Pseudothelphusidae, containing the single species Oedothelphusa orientalis. It is known from a single site at an altitude of 1,210 metres (3,970 ft) in Monagas state, Venezuela.
Prionothelphusa is a genus of freshwater crabs in the family Pseudothelphusidae, containing the single species Prionothelphusa eliasi. It lives in Colombia, Venezuela and Brazil in the drainages of the Rio Negro river draining the Guyana Shield, and is listed as Least Concern on the IUCN Red List.
Villalobosius is a genus of crabs in the family Pseudothelphusidae, containing a single species, Villalobosius lopezformenti. It lives in the northern part of the state of Oaxaca, Mexico, on the Isthmus of Tehuantepec, and is adapted to a troglobitic lifestyle.
Guinotia dentata, commonly known as cyrique, is a West Indian species of freshwater crab in the family Pseudothelphusidae. They have few predators. They are easily caught and thus are used locally as a food source.
Johngarthia planata is a bright orange species of land crab that lives on inshore islands and the continental mainland coast of the tropical and subtropical Pacific coast of the Americas, including the Gulf of California, Costa Rica, Colombia, and continental mainland beaches of Mexico. The crabs are omnivorous and feed on seaweed (algae), vegetation and sometimes carrion.
