1869.] 277 [Smith. 



tuberant; front and anterolateral border finely granuloua and clothed 

 with scattered, coarse pubescence. Front prominent and nearly 

 horizontal, the edge thin, obscurely four-lobed as seen from above, 

 median lobes much the largest, extending a little further forward than 

 the lateral and separated on the upper edge by a short, deep groove. 

 Superior margin of the orbit with two distinct fissures. Post-orbital 

 tooth separated from the second tooth of the antero-lateral margin by 

 a rounded sinus, and forming with it a prominent bidentate lobe, with 

 the inner tooth obtusely triangular and extending forward to a line 

 with the outer angle of the inferior margin of the orbit, the outer 

 tooth rounded at the tip ; remaining teeth of the antero-lateral margin 

 large and prominent; third tooth with its anterior edge straight, and 

 the outer, or posterior, edge arcuate; fourth acutely triangular, the 

 anterior edge thickened and curved slightly forward; fifth, or poste- 

 rior tooth slender and acute, the anterior edge much thickened and 

 strongly curved forward. Inferior lateral regions granulous and 

 pubescent. Inferior margin of the orbit divided by a deep fissure, 

 the inner lobe projecting as a sharp tooth nearly to a line with the 

 front, the outer lobe broad, with the edge thin and straight. 



Chelipeds with the carpi and hands smooth or slightly rugose; 

 hands unequal, stout, larger one (either the right or the left) with a 

 tubercle on the outer side projecting forward from the edge between 

 the bases of the fingers; dactylus with a strong basal tooth within; 

 smaller hands with the fingers more slender and slightly denexed, the 

 dactylus wanting wholly the basal tooth; fingers of both hands with 

 longitudinal impressed stria?. Ambulatory feet with the basal joints 

 pubescent along the edges, the terminal joints wholly pubescent. 



Color of alcoholic specimens dark olive above: the fingers black, 

 lighter at the tips. 



Several specimens give the following measurements : — 



Locality. Sex. 



Florida ? $ 



Egmont Key, Fla., " 



Bahamas, " 



Florida, " 



Bahamas, " 



Egmont Key, Fla , $ 



Florida V 



Length of 

 carapax. 



Breadth of 

 carapax. 



Ratio. 



17-9] 



aim. 



24-0: 



mm. 



1 : 1-34. 



21-5 



" 



30-0 



" 



1:1-39. 



26-0 



it 



35-6 



u 



1:1-36. 



26;4 



ti 



39-0 



" 



1:1-47. 



33-0 



u 



49-8 



u 



1:1-48. 



35-0 



" 



51-8 



it 



1:1-46. 



13-4 



II 



17-8 



" 



1 : 1-33. 



17-8 



u 



24-8 



(C 



1:1-39. 



25-8 



" 



37-6 



it 



1 : 1-42. 



27-0 



11 



38-7 



11 



1:1-43. 



