It depends on the type of crab. For example, fiddler crabs are of the genus Uca (Ocypodidae). And the blue crab is in the genus Chionoecetes.
It depends what species (type) of crab it is.
A crab is a crustacean not an echinoderm
purple crab and hermit crab
king or herbit crab
Crustacean
Crab
A sacculina is a genus of barnacles, which is a castrator of crabs.
Crabs are clawed crustaceans of the Genus Charassocarcinus. (Family has certain dispute)
Boxer crabs are Lybia. Lybia are a genus of small crabs that are also known as pom-pom crabs and hold sea anemone in their claws for defense.
I'm not sure what you mean by this question. Hermit Crab is a term used to refer to many different species of crabs that live in shells that have been cast off by snails. They can be marine hermit crabs, or land hermit crabs. Within these categories there are many different species. The Genus Coenobita contains 16 different species of terrestrial (land) hermit crabs. The Genus Paguras refers to those species of marine hermit crabs.
Pagurus Armatus(this is only one species of hermit crab) Coenobita is a Genus that contains about 13 species of land hermit crabs. Of the subphylum - Crustacea, class - Malocostraca and order - Decopoda
Crayfish are not a single species nor do they belong to a single genus. They make up the superfamily Astacoidea, which contains three families and 29 extant genera.
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There are about 13 species of crabs that have the ability to live on land, most of them are known as Hermit crabs, they start out in the water but eventually move to land, however thay still need water and salt around them to survive. Coenobita is the genus under which these types of crabs are classified. There is a lot of information here on wiki just doing a search here and on the net should give you the information you seek below are a couple of links to get you going.
# Genus Prostegotherium. # Genus Pseudostegotherium. # Genus Astegotherium. # Genus Stegosimpsonia. # Genus Stegotherium. # Genus Dasypus (long-nosed armadillos). # Genus Propraopus. # Genus Dasypodon. # Genus Utaetus. # Genus Meteutatus. # Genus Anteutatus. # Genus Pseudeutatus. # Genus Stenotatus. # Genus Proeutatus. # Genus Archaeutatus. # Genus Paraeutatus. # Genus Doellotatus. # Genus Chasicotatus. # Genus Ringueletia. # Genus Eutatus. # Genus Isutaetus. # Genus Anutaetus. # Genus Hemiutaetus. # Genus Amblytatus. # Genus Eodasypus. # Genus Prozaedyus. # Genus Vetelia. # Genus Proeuphractus. # Genus Paleuphractus. # Genus Chorobates. # Genus Macroeuphractus. # Genus Paraeuphractus. # Genus Acantharodeia. # Genus Chaetophractus (peludos). # Genus Zaedyus (pichi). # Genus Euphractus (six-banded armadillo). # Genus Tolypeutes (three-banded armadillos). # Genus Cabassous (naked-tailed armadillos). # Genus Priodontes (giant armadillo). # Genus Chlamyphorus(fairy armadillos). # Genus Calyptophractus.
Do you mean the scientific name? Land hermit crabs fall under the genus Coenobita and the most common crab is the species Clypeatus.
Some types of crabs I know of are fiddler crabs, hermit crabs and horseshoe crabs.
Mostly asian shore crabs, Mud crabs,Rock crabs, Donut Crabs and Spider Crabs. I believe there are no freshwater varieties.