Ifotes on North American Crustacea. 71 



Calappa marmorata. 



Calappa marmorata, Fabr. ; Suppl. 346. 



"We have specimens from Pensacola and from the Tortugas, 

 Florida. 



Calappa g^alloides, nov. sp. 



Yery closely allied to C. gallus of the Pacific, but is less con- 

 vex, and less strongly tubercnlated. The front or rostrum is 

 distinctly quadridentate. 



Inhabits the Florida Keys. Museum of the Smithsonian 

 Institution. 



DKOMIDEA. 



Dromidia^ ARtillensis, nov. sp. 



Body everywhere short-pubescent, with longer hairs on the sides and 

 on the feet. Carapax somewhat longer than broad, strongly convex, 

 smooth. Frontal region longitudinally grooved along the middle. 

 Front strongly deflexed and five-toothed (supra-ocular teeth included) ; 

 teeth small and slender, almost spiniform, horizontally projecting ; the 

 median three sub-equal, and about as long as the distance between 

 them at their bases ; teeth over the eyes shorter but acute. External 

 angle of the orbit prominent but obtuse. Lateral margin of the carapax 

 four-toothed, and deflected anteriorly toward the corners of the buccal 

 area, where there is a tubercle. First three teeth of lateral margin sub- 

 spiniform ; posterior one, situated at the lateral sulcus, as large as the 

 others but less acute. External maxillipeds elongated ; lueros large, 

 longer than the ischium, with its antero-exterior corner prominent, form- 

 ing a sharp right angle. Chelipeds rather short and stout, nearly 

 smooth ; inferior edges of ischium and meros-joints granulated ; carpus 

 dentated at anterior angles with small teeth ; hand short, smooth exter- 

 nally ; palm shorter than dactylus, and armed with two or three small 

 spiniform tubercles on the basal half of its superior margin. Ambula- 



* The diagnoses of this and the succeeding new genera of Anomoura will be 

 found in the Proceedings of the Philad. Acad. Nat. Sciences, Dee. 1858. 



