Notes on North American Crustacea. 83 



ing a tuft of hairs in its superior notch. Ophthalmic scale obtusely- 

 triangular, four-spined and somewhat setose at apex. Acicle of antcnnse 

 very slender, setose, not spinulose, and shorter than the eyes. In the left 

 cheliped the carpus is spinulose, with four larger spines on the superior 

 edge, that next the hand smallest ; hand very thick, surface granulato- 

 squamose, the squamaj often spinulose and setose ; no hair on the hand 

 excepting a little on the inner side ; fingers armed within each with four 

 or five strong but depressed molar tubercles ; 'tips of fingers corneous, 

 excavation small; exterior surface of dactylus sharply tuberculated. 

 Smaller hand hairy, spinulose above, and depresso-tuberculated on the 

 outer side. Second and third pairs of feet hairy and spinulose above ; 

 dactyli with tufts of hairs arranged in longitudinal series. The last two 

 joints of the left foot of the third pair are flattened, or somewhat excavated 

 on the outer side ; this surface is divided along the middle by an obtuse 

 carina, and transversely striated, the striae setose ; superior margin armed 

 with black-spinules ; inferior margin with subspiniform tubercles. The 

 scabrous disc of the hand in the 4th pair of feet is elongated, elliptical, almost 

 acute at either extremity. The false feet of the male abdomen are slen- 

 der. Length three inches. Length of carapax along median line, one 

 inch ; breadth of front, 0*42 inch. 



Found at Panama by the Rev. J. EowelL 



Aniciilus eleg^aiis, nov. sp. 



Median areolet of the gastric region rhomboidal, broader than in 

 A. typicus, and with its two anterior sides longest and straight. Frontal 

 sulci occupied by a dense pubescence. Rostral tooth or point regularly 

 triangular. Ophthalmic scales triangular, with an acute apex, and entire 

 margins. The under side of the meros and carpus joints in the chelipeds 

 is setose, but not tuberculated as in A. typicus, and the margins of these 

 joints are pectinated with black spinules. Length five inches. 



Found at Panama by the Rev. J. Rowell. 



Calcinu!^ obsciiruis, nov. sp. 

 This species has smooth cheUpeds, and is closely allied to C. 



