154 SMITHSONIAN MISCELLANIiOljS COLLECTIONS 



near the extremity; hand nearly smooth, punctate, with no granu- 

 lated lines within ; fingers deeply sulcated, gaping at the base. Ster- 

 num closely tuberculated. Abdomen smooth, with the exception of 

 the first and second joints, and a transverse line on the third, which 

 are granulated. Color in life yellowish-gray. Dimensions of the 

 carapax : Length, 0.49 ; breadth, 0.47 inch. 



Found on coarse sand bottoms, just below low- water mark, at 

 spring tides, in bays of the Chinese coast, near Hongkong. 



252. PHILYRA PLATYCHEIRA De Haan 



Philyra platycheira De Haan, Fauna Japonica, Crust., p. 135, pi. xxxiii, 

 fig. 6. 



De Haan's figure does not show the marginal granules, which 

 are, however, mentioned in his description. The surface of the 

 carapax, besides being punctated, is seen under the microscope to be 

 granulated, most conspicuously so posteriorly. The color in life is 

 a clear dark bluish-gray above, white below. 



It was dredged by us from a muddy bottom at the depth of six 

 fathoms, in Hongkong Harbor. 



253. PHILYRA UNIDENTATA Stimpson 



Plate XVIH, Fig. 4 



Philyra unidcntata Stimpson, Proc. Acad. Nat. Sci. Phila., x, p. 159 [58], 

 1858. 



Carapax (in the female) suborbicular, longer than broad; propor- 

 tion, 1 : 1 .08. It is a little produced anteriorly. The lateral and 

 posterior margins are rounded, continuous, and crenulated, the cren- 

 ulations being small, equal, and obtuse. Surface perfectly smooth 

 and glabrous. Front unidentate at the middle, but on each side 

 straight and considerably shorter than the epistome. Outer maxil- 

 lipeds flat ; ischium of endognath with an inconspicuous ciliated line 

 along the middle parallel to its inner margin. Chelipeds less than 

 twice as long as the carapax ; meros with large tubercles above on 

 the basal two-thirds, the rest smooth ; below the meros is closely 

 small-tuberculated, except the middle and anterior portions ; hand 

 sufficiently convex ; fingers short, somewhat depressed, touching 

 each other at the terminal third only of their length ; their inner 

 margins acute, obsoletely one- or three-toothed. 



Colors in life : Carapax very pale reddish-brown, with a median 

 stripe and portions of the margin of a bluish-white color. Feet 



