COMPLETE HAIG : EASTERN PACIFIC PORCELLANIDAE 173 



Remarks: Moreira (1901) listed Pachycheles rudis from Brazil. 

 The identity of the species on which this record was based is not 

 known. 



Range: Kodiak, Alaska, south to Bahia de la Magdalena, Baja 

 California; Santa Rosa, Santa Cruz, and Santa Catalina Islands off the 

 California coast. Shore; occasionally to 16 fathoms. 



Pachycheles holosericus Schmitt 

 Plate 34, fig. 2 



Pachycheles holosericus Schmitt in Nininger, 1918, p. 39 (not de- 

 scribed), text- fig. 18 (not recognizable to species). Schmitt, 1921, 

 p. 177 (description; type locality, Venice, California) ; pi. 33, fig. 

 3. Glassell, 1935, p. 105; 1938a, p. 444. 



Previous records: 

 California. Venice; Long Beach: (Schmitt). Laguna Beach: H. H. 

 Nininger (Nininger) ; (Schmitt). La Jolla; San Diego: (Schmitt). 

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



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

 with granules concealed by short plumose hairs and with two longitu- 

 dinal rows of small pearly tubercles arising from this pile, its anterior 

 margin armed with a lobe edged with groups of large, pointed, conical 

 granules; manus covered with large coarse granules nearly concealed 

 by a similar pubescence, out of it rising a large granulate protuberance 

 at base of pollex and an irregular longitudinal row of similar protuber- 

 ances near outer margin; walking legs with long plumose hairs; telson 

 five-plated; a pair of pleopods in male. 



Description: Carapace about as broad as long (very slightly broader 

 in females), strongly convex front to back, plicate on posterolateral re- 

 gions, otherwise smooth or punctate; naked except for traces of pub- 

 escence anteriorly, and very short, thick-set plumose hairs on frontal 

 region. Front narrow, sinuously triangular in dorsal view, trilobate in 

 frontal view, the median lobe produced. Outer orbital angle produced 

 into a broad tooth. Separated portion of side wall usually consisting of 

 one small piece. 



First movable segment of antenna with a tubercle at distal end of 

 anterior margin ; second and third granular ; flagellum naked. 



Merus of chelipeds rugose and granular; anterior margin with a 

 broad, subtriangular, strongly projecting, granular lobe. Carpus with a 



