128 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 24 



Dorsal surface of chelipeds more or less evenly covered with small, 

 somew^hat flattened granules. Merus with a strongly projecting, rounded 

 lobe on anterior margin. Carpus with three distinct conical teeth occu- 

 pying proximal half or two-thirds of anterior margin, proximal one the 

 largest, a fourth tooth occasionally present; dorsal surface with two low 

 longitudinal crests, one at about center and other near posterior margin, 

 a third crest, usually obsolescent, near anterior teeth, these crests some- 

 times covered with enlarged granules; posterior margin obliquely ru- 

 gose; surface covered with a short pubescence. Manus of major cheliped 

 with a low rounded crest on outer margin, defined by a shallow groove 

 extending to base of pollex; a low, broad swelling at articulation with 

 dactylus; surface covered with a short pubescence, slightly longer to- 

 ward outer margin; fingers strongly curved, cutting edges with a row 

 of small granules, usually more projecting in smaller individuals, ob- 

 solescent in some large specimens, fingers usually not meeting at tips, 

 gape naked or with a slight trace of pubescence. Manus of minor chel- 

 iped with crest and groove near outer margin similar to that of major chel- 

 iped ; outer half thickly covered with long plumose hairs, the pile ex- 

 tending to base of pollex or occasionally about half way onto it ; dactylus 

 strongly curved ; fingers meeting entire length, crossing at tips, gape 

 naked or with a slight trace of pubescence. 



Anterior margin of walking legs with a fringe of plumose hairs, 

 this fringe often obsolescent on carpus ; propodus and dactylus with 

 scattered tufts of plumose hairs and a few non-plumose setae on dorsal 

 surface. 



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



Variations: Usually only the smaller specimens have strongly pro- 

 jecting granules on the cutting edge of the dactylus of the major chel- 

 iped (not strong teeth as shown in Streets's illustration of the type). In 

 most specimens there is a row of small granules on the cutting edge of 

 both pollex and dactylus, but in some larger individuals the cutting 

 edges are perfectly smooth. 



In several of the specimens examined the plumose hairs on the 

 manus of the minor cheliped were not developed into a long thick pile, 

 but remained short as in the manus of the major cheliped. 



Material examined: See Table 40. 



Measure7nents: Males, 3.1 to 7.2 mm; non-ovigerous females, 2.3 

 to 7.7 mm; ovigerous females, 3.4 to 7.6 mm. Because of its dried con- 



