WEST AMERICAN CRUSTACEA. 573 



Locality: Bodega Bay; near Fort Bragg. 



Some of the specimens were found in the holes of the 

 common c\am (Jlfya), others were picked up on the shore. 

 This species is easily recognized by its smooth, shiny ap- 

 pearance, its projecting front and large hands with the 

 large gap between the fingers. There is no crest or groove 

 on the meros of the third ambulatory legs either in this 

 species or J^. tubicola. 



PiNNIXA LONGIPES Lock. 



Tubicola longijies Lockingtou, Proc. Cal. Acad. Sci. vii, p. 55. 

 Pinnixa longipes Lockingtou, Proc. Cal. Acad. Sci. vii, p. 156. 

 Pinnixa lonr/ipes Streets & Kiugsley, Bull. Essex Inst, ix, p. 107. 



Carapax considerably more than twice as broad as long, 

 smooth, somewhat flattened above and furnished with a 

 transverse depression behind the gastric region. Front 

 slightly projecting and furnished with a groove just be- 

 hind and parallel with the transverse anterior margin ; 

 there is also a short longitudinal median groove which 

 becomes deeper toward the anterior margin of the frontal 

 process. Antero-lateral margin rounded, usually marked 

 by a more or less evident ridge, and meeting the concave 

 postero-lateral margin at an acute angle. Posterior mar- 

 gin long and straight. The lower edge of the anterior 

 margin of the carapax (not the antero-lateral margin 

 proper) is furnished with long hairs. There is a ridge 

 which runs from the outer end of the orbit downwards 

 and outwards to the edge of the carapax. Orbits oblong, 

 transverse. Antennul^ obliquely plicated. Maxillipeds 

 oblique, furnished with long hairs, the meros large, nearly 

 twice as long as broad, the outer margin convex; the pen- 

 ultimate joint is subovate ; the last joint is broadly spat- 

 ulate, joined near the base of and slightly exceeding the 

 preceding one ; the expod has the edges parallel and the 

 outer distal angle concave. Chelipeds small, short, hair}^; 



