166 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL.24 



come flattened and imbricate; dactylus long, slender, curved, with a 

 double row of small tubercles and a large proximal tubercle on cutting 

 edge ; pollex short, conical ; hand with a pile like that of carpus, this 

 pile extending onto pollex, or at least with scattered plumose hairs; 

 fingers gaping, gape thickly covered with plumose hairs, latter sometimes 

 extending along cutting edges of fingers nearly to tips. Manus and 

 fingers of minor cheliped with small granules; pollex, inner half of 

 dactylus, and almost entire surface of manus densely covered with plu- 

 mose hairs, always longer and thicker than those of major cheliped; in- 

 terspersed among the pubescence a few long, scattered, flexible, non- 

 plumose setae; fingers meeting for entire length, gape with a short 

 pubescence, less pronounced than in major cheliped. In both chelipeds, 

 the ventral surface of manus granular, and covered with a short pub- 

 escence near outer margin. 



Walking legs faintly rugose dorsally, smooth ventrally. Merus with a 

 fringe of long plumose hairs on anterior margin ; carpus, propodus, 

 and dactylus covered with long plumose hairs, the latter two segments 

 with a few long non-plumose setae. 



Abdomen smooth or punctate ; telson with seven plates. No pleopods 

 in male. 



Measurements: Holotype male: length 19.0 mm, width 20.4 mm. 

 Paratypes: males, 2.5 to 19.5 mm; non-ovigerous females, 4.3 to 7.8 

 mm; ovigerous females, 3.7 to 19.3 mm. 



Color: No particular color pattern was discernible in any of the 

 specimens examined, all of which had been in alcohol for 20 years or 

 longer. All were a light yellow-buff, with hairs yellow. 



Ecology: The species was dredged at three Velero III stations in 

 depths of 5 to 95^ fathoms, the substrate being sand in two cases and 

 rock in the third. W. L. Schmitt recovered it from wreckage off the 

 beach at Salaverry. A single specimen was taken in the littoral by Velero 

 III collectors. 



Ovigerous females were collected in January and February by the 

 Velero III, in April by R. E. Coker, and in October by W. L. Schmitt. 



Relationships : Pachycheles crinimanus is closely related to P. grossi- 

 manus (Guerin), which inhabits the same territory, and to P. pubescens 

 Holmes, a northern hemisphere form. Following are the chief char- 

 acters distinguishing the three species: 



