COMPLETE HAIG: EASTERN PACIFIC PORCELLANIDAE 163 



California. Humboldt County; Drakes Bay: (Holmes). Oakland: H. 



Hemphill (Schmitt). Farallon Islands: (Holmes). Monterey Bay: 



(Schmitt). 

 Baja California. Ensenada: S. A. Glassell (Glassell 1935). 



Diagnosis: Carapace with a tuft of plumose hairs on front; cheli- 

 peds covered with short plumose hairs and scattered tufts of long, 

 stiff, non-plumose setae ; anterior margin of carpus with three or four 

 shallow, uneven, serrate teeth ; manus covered with large granules 

 nearly concealed by pubescence ; walking legs with long plumose hairs ; 

 telson seven-plated ; a pair of pleopods in male. 



Description: Carapace slightly broader than long, strongly convex 

 front to back, plicate on posterolateral regions, otherwise punctate ; 

 naked except for a tuft of plumose hairs on front, and sometimes traces 

 of pubescence in young specimens. Front narrow, sinuously triangular 

 in dorsal view, trilobate in frontal view, the median lobe produced. 

 Outer orbital angle produced into a tooth. Separated portion of side 

 wall consisting of one large piece and a number of fragments. 



First movable segment of antenna with a pointed tubercle or spinule 

 on anterior margin; second granular; third nearly smooth; flagellum 

 naked. 



Merus of chelipeds with short rugae or flattened granules; an- 

 terior margin with a strongly projecting, subtriangular lobe covered 

 with small imbricate granules. Carpus with a broad lobe on anterior 

 margin, cut into three or four uneven, serrate teeth; lobe and surface 

 of carpus covered with small, flattened granules, latter tending to be- 

 come enlarged and elongate near and along posterior margin. Manus 

 and fingers covered with large, coarse granules, projecting more to- 

 ward outer margins. Entire surface of chelipeds thickly covered with 

 short plumose hairs, arising in groups from the distal end of each gran- 

 ule; carpus, manus, and fingers with scattered tufts of long, stiff, non- 

 plumose setae. Fingers gaping but slightly in major cheliped, meeting 

 entire length in minor cheliped ; gape thickly covered with short plu- 

 mose hairs, more pronounced in major cheliped and extending along 

 cutting edges of fingers nearly to their tips. 



Merus of walking legs with a fringe of plumose hairs on anterior 

 margin ; carpus and propodus covered with similar hairs, scattered long, 

 non-plumose setae interspersed with them. 



Telson of abdomen with seven plates. A pair of pleopods in male. 



Material examined:' See Table 50. 



