58 SMITHSONIAN MISCELLANEOUS COLLECTIONS 



77. PILODIUS NIGROCRINITUS Stimpson 



PtATE VII, Fig. I 



Pilodius nigrocriniius Stimpson, Proc. Acad. Nat, Sci. Phila., x, p. 34 

 [32]. 1858. 



The entire upper surface of the body and feet is covered with 

 short set£e, among which many of a black color are conspicuously 

 distributed ; there are also longer ones of a yellow color sparingly 

 interspersed. Carapax broad, well areolated ; separating grooves 

 deep. Surface of areolets somewhat scabrous. Antero-lateral mar- 

 gin convex, teeth slightly prominent, rounded and denticulated. 

 The front is less prominent than usual and its median emargination 

 is inconspicuous. In the chelopoda the carpus and hand are rough 

 with spiniform granules. In the ambulatory feet the meros is ser- 

 rated above. 



One specimen only was taken, a female, the dimensions of which 

 are: Length of carapax, 0.28; breadth, 0.41 inch; ratio, i : 1.46. 



It is closely allied to P. pilumnoides, but is broader ; the antero- 

 lateral margin is convex instead of concave, and its denticulated 

 teeth are rounded, having no central principal denticle, and there is 

 no tooth at the inferior extremity of the penult joint of the feet. It 

 is not improbably the same as P. pilumnoides Dana, but cannot be 

 that of Adams and White. 



Taken at Simoda, Japan. 



78. PILODIUS GRANULATUS Stimpson 



Plate VII, Fig. 2 



Pilodius granulatus Stimpson, Proc. Acad. Nat. Sci. Phila.. x, p. 34 [32], 

 1858. 



Carapax broad ; proportion of length to breadth in the male, 

 I : 1.5. Antero-lateral margin a little shorter than the postero- 

 lateral. Upper surface of carapax well areolated; surface of areo- 

 lets strongly granulated or tuberculated and pubescent. Teeth of 

 the antero-lateral margin four in number, excluding the angle of the 

 orbit. They are small, denticulated, and acute (particularly the first 

 one), the median denticle in each being sharply prominent and 

 curving forward. Front, orbits, etc., nearly as in P. puhesccns and 

 pilumnoides. Chelopoda tuberculated ; carpus armed with sharp 

 tubercles rather larger than those of the hand, and with two small, 

 very sharp teeth or spines at its inner angle ; hand with tubercles 



