•208 Notes on North American Crustacea. 



Xaiiithodes taylori, nov. sp. 



PL III, fig. 3. 



Carapax areolated ; areolets anteriorly embossed ; margins of the 

 transverse protuberances often crenulated. Front deeply quadridentate ; 

 teetb widely separated ; their interspaces coarsely crenulated. There is 

 also a crenulated transverse ridge above and parallel with the front, 

 interrupted at the middle by the deep median sulcus of the frontal and 

 gastric regions. Three prominent teeth on the antero-lateral margin, 

 the anterior one bifid, the posterior one with a supplementary tooth 

 behind it. Between the anterior tooth and orbit, the margin is obtuse 

 or flattened, and armed with four or five tubercles. In the chelipeds 

 the carpus and hand, above and exteriorly, are uniformly covered with 

 rather closely-set, prominent, subglobular, rose-colored tubercles. There 

 is a slight tendency to excavation in the tips of the fingers. Ambula- 

 tory feet spinose and setose above, setae stiff. In the alcoholic specimen 

 the carapax is rose-colored, like the tubercles of the chelipeds, which are 

 set on a bluish ground ; fingers black, the black not spreading npon 

 the hand. Length of the carapax in a female, 0.72 ; breadth, 1.09 inch. 



This pretty species was found at Monterey, Cal., in March, 

 1859, by Mr. Alex. S. Taylor, who writes : — " The crab is new 

 to us here, never having been seen before ; — it was found on 

 the sand beach after a heavy storm, and lives, very likely, in 

 deep water among sea-weeds." It is probably, like other 

 species of the genus, an inhabitant of the laminarian zone. 



Xantltodius laebes, nov. sp. 



Body and feet naked with the exception of the pubescent dactyli of 

 the ambulatory feet. Carapax smooth, moderately but not deeply 

 areolated ; surface conspicuously punctated. Antero-lateral margin 

 smooth, obtusely rounded, obscurely quadrilobate. Front obtuse, straight 

 when seen from above, but deeply sinuous in its margin seen from before. 

 Subhepatic region deeply punctated or minutely vermiculated behind 



