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The Japanese spider crab is a species of marine crab that lives in the waters around Japan. It has the largest leg span of any arthropod. They go through three main larval stages along with a prezoeal stage in order to grow to their great size. The genus Macrocheira contains multiple species. Two fossil species of this genus have been found, Macrocheira ginzanensis and Macrocheira yabei, both from the Miocene of Japan. The diverse taxonomic history is an important part of what these creatures are and how they evolved to be what they are today. These creatures are not isolated however, as they are the subject of fishery and are considered a delicacy. Conservation efforts are being put forth to protect these creatures and their population from the dangers of overfishing.
King crabs are a taxon of crab-like decapod crustaceans chiefly found in cold seas. Because of their large size and the taste of their meat, many species are widely caught and sold as food, the most common being the red king crab.
The Bythograeidae are a small family of blind crabs which live around hydrothermal vents. The family contains 16 species in six genera. Their relationships to other crabs are unclear. They are believed to eat bacteria and other vent organisms.
Calappidae is a family of crabs containing 16 genera, of which 7 are only known as fossils:
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.
Hematodinium is a genus of dinoflagellates. Species in this genus, such as Hematodinium perezi, the type species, are internal parasites of the hemolymph of crustaceans such as the Atlantic blue crab and Norway lobster. Species in the genus are economically damaging to commercial crab fisheries, including causing bitter crab disease in the large Tanner or snow crab fisheries of the Bering Sea.
Matutidae is a family of crabs, sometimes called moon crabs, adapted for swimming or digging. They differ from the swimming crabs of the family Portunidae in that all five pairs of legs are flattened, rather than just the last pair, as in Portunidae. Crabs in the Matutidae are aggressive predators.
Calappula saussurei is a species of crab in the family Calappidae, the only species in the genus Calappula.
Cryptosoma is a genus of crabs in the family Calappidae, containing the following species:
Cycloes is a genus of crabs in the family Calappidae, containing the following species:
Mursia is a genus of crabs in the family Calappidae, containing the following species:
Paracyclois is a genus of crabs in the family Calappidae, containing the following species:
Platymera is a genus of crabs in the family Calappidae, containing the following species:
The genus name Acanthocarpus may apply to:
Calappa gallus, common name rough box crab, or lumpy box crab, and Hawaiian name poki poki, is a benthic species of box crab in the family Calappidae.
Austin Beatty Williams was an American carcinologist, "the acknowledged expert on and leader in studies of the systematics of eastern American decapod crustaceans".
Calappa calappa, also known as the smooth box crab or red-spotted box crab, is a tropical marine species of crab with an Indo-Pacific distribution, and showing great variability in its patterning and colouration. First described as Cancer calappa by Linnaeus in 1758 from a specimen originating from Ambon Island, and later in 1781 as Cancer fornicatus by Fabricius, it was finally placed in the genus Calappa by Lancelot Alexander Borradaile in 1903. The name calappa is associated with kelapa, the Malay word for 'coconut'.
Calappilia is an extinct genus of box crabs belonging to the family Calappidae. The type species of the genus is Calappilia verrucosa.
Mursiopsis is an extinct genus of box crabs belonging to the family Calappidae. The type species of the genus is Mursiopsis pustulosus, Ristori 1889.
References
- ↑ Austin B. Williams & C. Allan Child (1989). "Comparison of some genera and species of box crabs (Brachyura: Calappidae), southwestern North Atlantic, with description of a new genus and species" (PDF). Fishery Bulletin . 87 (1): 105–121.
- ↑ P. Davie (2010). "Cyclozodion Williams & Child, 1989". World Register of Marine Species . Retrieved December 6, 2010.
