in the Museum of the Smithsonian Institution. 117 



Schramm, Crnst. de la Guadalonpe, p. 54, for tliat species is 

 described as having the granulatioTis of the clielipeds larger 

 than those of the carapax; the meros of the chelipeds rounded, 

 and both meros and hand without crest; the ambulatory feet 

 simply granulated ; and no mention is made of the bi-idged 

 fossae between the cardiac and the branchial regions, unless 

 these are what is meant by "trous borgnes," which is not prol)- 

 able. What E. mainmUlosa is will, perhaps, always remain a 

 matter of conjecture, as no specimen was preserved in Des- 

 bonne's collection, and no figure was made. It is probably a 

 Lithadia. 



Found at Barbados by Theodore Gill. 



Ulllia§, nov, gen. 



Closely allied to Oreojyhorus, but difiering in its broadly el- 

 liptical shape, in the greater expansion of the sides of the cara- 

 pax, in the non-projecting front, in the concealment of the eyes 

 beneath the orbital margin of the carapax, in the broader and 

 non-tapering exognath of the external maxillipeds, and in the 

 expanded penult joint and short dactylns of tlve ambulatory 

 feet. The hepatic region is not distinctly defined, and is not 

 toothed. 



Uhlias is an American, while Oreopho7'us is an East Indian 

 genus. 



Uhlias elliptlcns, nov. sp. 



Of this species I have seen only one specimen, a female, which 

 may be described as follows : Carapax broad, regularly ellij)tical, rather 

 depressed ; sides much expanded, laminiform ; middle of the carapax 

 elevated above the sides, which are depressed. Upper surface, witli 

 the exception of the central parts and the lateral expansions, covered 

 with deep, rounded, or elongated pits. The posterior pits ar^ the 

 largest, and six of them, of a pentagonal or rounded shape, are situ- 

 ated on the posterior part of the branchial regions, three on each 

 side. A large, transverse pit occupies the entire width of the intes- 



