CRUSTACEA NORTH PACIFIC EXPLORING EXPEDITION 10/ 



banded and spotted with black. Large cheliped pale red. Feet 

 purplish, mottled. External maxillipeds light blue. Lower surface 

 of body very pale bluish. Dimensions of a male : Length of cara- 

 pax, 0.49; breadth, 0.78; length of large hand, 1.35; breadth, 0.48 

 inch. 



This species is remarkable for its convexity and for the promi- 

 nence, without acuteness, of the anterior angles of the carapax. It 

 is allied to G. gaiiiiardi and to G. latrcillci of Milne Edwards (Me- 

 langes Carcinologiques, p. 114), and may prove identical with one 

 of these species, but the descriptions as yet published are too short 

 for certain identification. From the first-mentioned species ours 

 would appear to differ in having the front less prolonged and 

 rounded below, and from the second in the greater length and the 

 dentition of the pincers. 



Our species inhabits salt marshes on the shores of Hongkong 

 Harbor. 



167. GELASIMUS PULCHELLUS ' Stimpson 



Plate XV, Fig. i 



Gclasiinus f^iilchclhis Stimpson, Proc. Acad. Nat. Sci. Phila.. x, p. 100 [46], 

 1858. 



Of this species several male specimens were collected. They are 

 all of small size, but have the appearance of being nearly full grown. 

 Carapax strongly convex, narrowed behind, broad in front, where it 

 is prominent at the middle. Length to breadth as i : 1.51. Antero- 

 lateral angles acute, prominent. ^Marginal lines sufficiently distinct. 

 Front prominent, broad, rounded below. Eye-peduncles long, the 

 eyes reaching nearly, if not quite, to the extremities of the orbits. 

 Outer angle of the acutely crenulated inferior margin of the orbit 

 rounded. Large cheliped with nearly smooth surfaces, obsoletely 

 granulated ; hand armed within, the inferior crest prominent, granu- 

 lated, the superior crest very sparsely granulated. There are two 

 parallel crests at the base of the fingers, each ornamented with a 

 single row of small tubercles. On the outer surface of the hand at 

 the base of the immovable finger there is a small depressed area or 

 shallow pit, like a cicatrix, of an ovate or triangular form, which is 

 always present and affords a good specific character. The fingers 

 are rather short, slightly compressed ; the sides smooth ; the inner 

 margins denticulated, with two or three somewhat larger, conical 

 teeth interspersed; one of these larger teeth is situated close to the 



^ Uca pnlchclla (Stimpson). 



