Inachoididae Dana, 1851

Wicksten, Mary K., 2012, Decapod Crustacea of the Californian and Oregonian Zoogeographic Provinces 3371, Zootaxa 3371, pp. 1-307 : 216

Family Inachoididae Dana, 1851

Members of the family Inachoididae live on sand, mud or pilings in harbors. Although proposed as a distinct family by Dana (1851), the group had been considered as part of the family Majidae until a revision by Drach & Guinot (1983) provided evidence to support their differentiation from other majoid families. Inachoidids have the lateral edges of the carapace set in a groove of the pleural (gill chamber) walls, with the external part visible as pleural plates. The first pleonite (abdominal segment 1) is jointed to the carapace. The pereopods are relatively long and slender. There are nine genera of this family along both coasts of the Americas, but only one species is reported from Oregon to northern Baja California.