106 Notes on North American Crustacea, 



lateral margin with five teeth, including the angle of the orbit, which 

 is about equally prominent with the other teeth. There is generally a 

 minute denticle or two in the interval between the teeth. From the 

 posterior tooth a slight transverse ridge extends inward across the 

 branchial region. Front rather broad ; median and lateral sulci deep ; 

 margin of lobes convex. Orbital margin smooth, or simply granulat- 

 ed ; fissures very slight, except the extero-inferior one. A slight ridge 

 on the subhepatic region extending forward from the second antero- 

 lateral tooth. Chelipeds with large tubercles or jjrojections, five or 

 six on the carpus, and nine or ten on the hand ; outer surface of the 

 hand with a slight median ridge and obsolete transverse ranges of 

 minute granules. 



Of this species I have seen only one specimen, a male, perhaps imma- 

 ture, the dimensions of which are : Length of carapax, 0.12 ; breadth, 

 0.17 inch. 



The specimen was found at Cape St. Lucas by Mr. John 

 Xantus. 



Meiiippe Riiniphii. 



Cancer RumpUi Fabr., Suppl., 33G (?). Herbst, Naturg. d. Krabben u. 

 Krebse, III, xlix. , 2. 



Menippe Rumphii Be Haan, Fauna Japonica, Crust. , 21 ; Dana U. S. Expl. 

 Exped., Crust., I.. 179. Smith, Trans. Conn. Acad. II. 34. 



Pseudocardmis Rumphii H. Milne-Edwards, Hist. Nat. des Crust. , I. 408. 



Menippe nodifrons Stimpson, Notes on N. American Crust. , p. 7. 



In this species, as in M. ohtusa, there is a striated area on the 

 inner surface of the hand, but it is far less developed than in that 

 species, and the striae are much finer and more closely set ; in 

 some specimens they are scarcely perceptible. 



The description of Fabricius does not apply, in all respects, to 

 our species ; as, for instance, " carpi vix unidentati " and " frons 

 margine quadridentata." 



H. Milne-Edwards, and the older authors generally, give the 

 East Indies as the habitat of the species, but White and Dana 

 refer it to the West Indies and Brazil. In the Smithsonian Mu- 

 seum there are specimens from Florida (Wurdemann), Jamai- 

 ca (C. B. Adams), and St. Thomas (A. H. Eiise). 



