CRUSTACEA NORTPI PACIFIC EXPLORING EXPEDITION 91 



terminal joints sulcated. Dimensions: Length of carapax, 0.325; 

 breadth, 0.41 inch. 



In a specimen of somewhat larger size, which appears to be the 

 female of this species, the carapax is smoother and more convex, the 

 antero-lateral margin more oblique and the chelipeds nearly as large 

 in proportion as in the male. 



They were found below low-water mark in the harbor of Hong- 

 kong. 



138. PILUMNOPLAX LONGIPES Stimpson 



PilitiiiiKiphi.v longipcs Stimpson, Pi-oc. Acad. Nat. Sci. Phila., x, p 93 

 [39], 1858. 



Female specimens only of this species were found. Carapax de- 

 pressed, subquadrate, nearly as broad posteriorly as the broadest part. 

 Proportion of length to breadth, i : 1.435. The flat upper surface is 

 smooth and even, and pubescent. Antero-lateral margin very short, 

 rounded, somewhat acutel}- crested, and armed with four or five 

 minute, inconspicuous teeth. Orbit small, with the external margins 

 entire and a little raised or projecting. Front very broad, deflexed, 

 and emarginate at the middle ; a supramarginal line of long setse. 

 Subhepatic regions smooth and glossy. Outer maxillipeds villose. 

 Chelipeds with the outer surface of the carpus, hand, and fingers 

 thickly hairy ; fingers rather long and slender, with curving tips, and 

 irregularly toothed inner margins. Ambulatory feet hairy, very long, 

 penultimate pair longest ; dactyli of the last pair long and curved. 

 Abdomen elongate-triangular. Lower surface of body, abdomen, 

 etc., lanose. Dimensions of the carapax: Length, 0.195; breadth, 

 0.28 inch. 



Found at Ousima. 



139. PILUMNOPLAX SCULPTA Stimpson 



Plate XI, Fig. 3 



Pilumnoplax sculpta Stimpson, Proc. Acad. Nat. Sci. Phila., x, p. 93 

 [39], 1858. 



The following description is taken from female specimens : Body 

 and feet setose and sparsely hairy. Carapax almost quadrangular, 

 very broad posteriorly. Proportion of length to breadth, i : 1.27. 

 Back deeply sculptured with very numerous anastomosing grooves, 

 dividing the surface into narrow^ curved areolets and giving it a 

 somewhat vermiculated appearance. The most conspicuous areolets 



