I04 SMITHSONIAN MISCE;LLANI:0US COLLECTIONS 



The branchial regions are prominently inflated above, forming 

 subglobose projections, which are much more conspicuously granu- 

 lated than the rest of the carapax. The gastric region is nearly 

 smooth, bearing only a few scattered granuliform "points." In the 

 compressed ambulatory feet the penult joint bears two prominent 

 carinae, the dactylus four carina. The meros- joint is somewhat in- 

 flated and granulated. The hectognathopoda are greatly expanded 

 and protruding, so as to lie in planes almost longitudinally vertical. 

 The rostrum is more pointed than in M. longicarpus, and there is a 

 granulated projection instead of a spine exterior to the orbit. Color 

 in life as in M. longicarpus. Size also about the same. Our speci- 

 mens were taken on the shores of Botany Bay, in the third subregion 

 of the littoral zone. 



It is perhaps the same as M. subverrucatus White (Cat. Brit. 

 Mus., 1847, p. 34), of which no description has been published. If 

 it should prove distinct we would propose the name M. prostoma. 



OCYPODID^ 



Genus GELASIMUS Latreille 



163. GELASIMUS VOCANS ' (Rumph) Milne Edwards 



Cancer vocans Rumph (fide Milne Edwards). 



Gelasimus nitidus Dana, U. S. Expl. Exped., Crust., i, 316, pi. xix, fig. 5. 



Gelasimiis vocans Milne Edwards, Mel. Carcin., 109, pi. in, fig. 4. 



Color of carapax in life bluish-gray or olivaceous, rather dark; 

 sometimes mottled with white. Below bluish-white. Feet paler. 

 Large hand white or light gray above, yellowish-green or deep 

 orange below. Small hand bluish. 



Found in its holes on coarse sandy shores not far below high- 

 water mark in Napa Harbor, Loo Choo, and Hongkong Harbor, 

 China. 



164. GELASIMUS DUBIUS- Stimpson 



Pl.\te XIV, Fig. 4 



Gelasimus dubiiis Stimpson, Proc. Acad. Nat. Sci. Phila., x, p. 99 [45], 

 1858. 



This species resembles G. vocans in shape and in the characters of 

 the front, etc., except that the carapax is more narrowed posteriorly ; 



^ Uca marionis nitida (Dana). 

 -Uca dubia (Stimpson). 



