164 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL.24 



Measurements: Males, 4.6 to 14.2 mm; non-ovigerous females, 4.8 

 to 9.9 mm; ovigerous females, 6.0 to 14.1 mm. The length of one of 

 the types, sex not stated, was reported to be 15 mm (Holmes). Schmitt 

 gave the length of a specimen as 18 mm. 



Color: "The carapace is brick red in formalin, except for the ros- 

 trum and posterior margin, which is grey mottled with brown. The 

 granules on the chelae are white and the inner margin is reddish." 

 (Hart, 1940) 



Ecology: It will be observed from the table of material examined 

 that, with one exception, all collecting localities from Oregon to Cayu- 

 cos, San Luis Obispo County, California, were in the littoral; and all 

 mainland localities south of this point, again with a single exception, 

 were dredge stations with depths of 5 to 30 fathoms, as were those 

 around the northern Santa Barbara islands off the California coast. 

 Apparently the species normally inhabits the intertidal zone in the cold- 

 temperate, and deeper waters in the warm-temperate part of its range. 

 Most of the littoral specimens collected in Oregon were taken during 

 minus tides. The substrates recorded for the dredge stations are as fol- 

 lows: sand; sand and rock; rock with kelp; rock and corallines; rock 

 and sand ; gravel ; shell ; sand and kelp. 



Ovigerous females were collected in February, March, June, July, 

 August, and December. 



Remarks: Melin (1939, pp. 114-115) and Miyake (1943, p. 106) 

 showed that specimens from Japan referred to Pachycheles pubescens 

 by Balss (1913) belong to a distinct species. The western Pacific form, 

 which Miyake (1943) named Pachycheles balssi, does not appear to be 

 closely related to the present species. 



Range: Goose Island, British Columbia, south to Thurloe Head, 

 Baja California; off San Miguel and Santa Rosa Islands, California. 

 Shore to 30 fathoms. 



Pachycheles crinimanus, new species 

 Plate 14; plate 34, fig. 4 

 Pachycheles grossimanus, Rathbun, 1910, p. 559 (part). Not P. grossi- 

 manus (Guerin). 



Previous records: Peru. Bahia de Sechura W of Matacaballa: R. 

 E. Coker (Rathbun). 



Types: Holotype, male, Allan Hancock Foundation Cat. No. 3815, 

 from Bahia de Sechura, Peru, 9^ fathoms; February 15, 1938; col- 



