Oregoniidae
Encyclopedia
Oregoniidae is a family
of crab
s, formerly included in the family Majidae
. It contains the four genera Chionoecetes
, Hyas
, Macroregonia and Oregonia.
Family (biology)
In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...
of crab
Crab
True crabs are decapod crustaceans of the infraorder Brachyura, which typically have a very short projecting "tail" , or where the reduced abdomen is entirely hidden under the thorax...
s, formerly included in the family Majidae
Majidae
Majidae is a family of crabs, comprising around 700 marine species with a carapace that is longer than it is broad, and which forms a point at the front. The legs can be very long in some species, leading to the name "spider crab"...
. It contains the four genera Chionoecetes
Chionoecetes
Chionoecetes is a genus of crabs that live in the northern Pacific and Atlantic Oceans.Other names for crabs in this genus include "queen crab" and "spider crab" – they are known by different names in different areas of the world....
, Hyas
Hyas (genus)
Hyas is a genus of oregoniid crabs, comprising five extant species:*Hyas alutaceus Brandt, 1851*Hyas araneus *Hyas coarctatus Leach, 1815*Hyas lyratus Dana, 1851*Hyas ursinus Rathbun, 1924...
, Macroregonia and Oregonia.