Ocypodoidea

Group of crabs

The Ocypodidae (from Ancient Greek ὠκύς (okús), meaning "swift", and πούς (poús), meaning "foot") is a family of semiterrestrial crabs that includes ghost crabs and fiddler crabs. These crabs are found along tropical and temperate shorelines worldwide.

Ocypode is a genus of ghost crabs found in the sandy shores of tropical and subtropical regions throughout the world. They have a box-like body, thick and elongated eyestalks, and one claw is larger than the other in both males and females. They inhabit deep burrows in the intertidal zone. They are primarily nocturnal, and are generalist scavengers and predators of small animals. The genus contains 21 species.

The Ocypodoidea, or ocypoid crabs, are a superfamily of crabs, named after the genus Ocypode. It contains the following families:

species of crustacean

species of crustacean

Mictyris is a genus of brightly coloured crabs, placed in its own taxonomical family, the Mictyridae. It inhabits the central Indo-West Pacific region. These crabs congregate on mud flats or beaches in groups of a few thousand, and filter sand or mud for microscopic organisms. They congregate during low tide, and bury themselves in the sand during high tide or whenever they are threatened. This is done in wet sand, and they dig in a corkscrew pattern, leaving many small round pellets of sand behind them.

species of crustacean

species of crab

species of crustacean

genus of crustaceans

The Dotillidae are a family of crabs with 59 species, nearly half of which are in the genus Ilyoplax. The two genera Scopimera and Dotilla are collectively the sand bubbler crabs, which leave conspicuous collections of sand pellets on sandy beaches across the tropical and subtropical Indo-Pacific.

The Macrophthalmidae, commonly referred to as sentinel crabs, are a family of crabs, comprising these subfamilies and genera: Ilyograpsinae Števčić, 2005 Apograpsus Komai & Wada, 2008 Ilyograpsus Barnard, 1955 Macrophthalminae Dana, 1851 Australoplax Barnes, 1966 Enigmaplax Davie, 1993 Hemiplax Heller, 1865 Lutogemma Davie, 2008 Macrophthalmus Desmarest, 1823 Tasmanoplax Barnes, 1967 Venitus Barnes, 1967 Tritodynamiinae Števčić, 2005 Tritodynamia Ortmann, 1894

species of crustacean

Xenophthalmidae is a family of crabs belonging to the superfamily Ocypodoidea.

thumb|Macrophthalmus latreillei, a Pleistocene sentinel crab from northern Australia. Macrophthalmus is a genus of crabs which are widespread across the Indo-Pacific. It contains the following species (arranged into subgenera): Species in this genus are often referred to as sentinel crabs.

The Camptandriidae are a family of crabs, with 38 species in 21 genera:

subfamily of crustaceans

species of crustacean

species of crab

species of crustacean

species of crustacean

species of crustacean

species of crustacean

species of crustacean

species of crustacean

species of crab

species of crustacean

species of crustacean

species of crustacean

Ucides is a genus of mangrove crabs in the monotypic family Ucididae, containing two species: Ucides cordatus (Linnaeus, 1763) – Atlantic coast from Florida to Uruguay Ucides occidentalis (Ortmann, 1897) – Pacific coast from Mexico to Peru

species of crustacean

species of crustacean

species of crustacean

species of crustacean

species of crustacean

genus of crustaceans

species of crab

species of crustacean

species of crustacean

species of crab

species of crustacean

species of crustacean

genus of crustaceans

Tubuca is a genus in Ocypodidae, a family of fiddler and ghost crabs. There are more than 20 described species in Tubuca.

species of crustacean

species of fiddler crab

species of crustaceans

species of crab

species of crustacean

species of crustacean

Paracleistostoma is a genus of crabs in the family Camptandriidae. It used to be a member of Ocypodidae, but the genus has since been reclassified. They are found in Singapore, the west coast of the Malay Peninsula and the Hainan and Fujian provinces in of China. They are found in seawater and the mud area in brink water.

Heloecius cordiformis is a species of semiterrestrial crab found in mangrove swamps and mudflats along the east coast of Australia. Adults are around wide, with males being larger and having larger and more conspicuously coloured claws. The males wave their claws to communicate with other crabs, giving them their common name of semaphore crab. They can breathe both in air and under water, and feed at low tide on detritus in the sediment. H. cordiformis is the only species in the genus Heloecius and the family Heloeciidae.

species of crustacean

Austruca is a genus of Indo-west Pacific fiddler crabs in the family Ocypodidae. There are about 13 described species in this genus.

species of crustacean

species of crustacean

species of crab

species of crustacean

species of crustacean