OXYSTOMATOUS AND ALLIED CRABS OF AMERICA ^25 



Description. — Carapace hexagonal, length and width subequal; 

 surface more even than usual in the genus; covered with crowded, 

 depressed granules, smaller on anteiior third; a few prominent gran- 

 ules; a row of outstanding granules on lateral margin; hepatic region 

 depressed, its margin forming a low, blunt prominence a little in 

 front of branchiohepatic suture; the pterygostomian prominence is 

 farther forward, subacute; cardiac region swollen, surromided by a 

 depression; a posterolateral lobe in transverse line with middle of 

 cardiac region; posterior border bilobed. In the male the 4 iDosterior 

 protuberances are subrectangular, rounded at tip; in the female 

 these lobes are very shallow, the posterior pair forming together a 



Figuhe 33. — Ebalia stimpsonii, female: Dorsal view, X 5. After A. Milne Edwards and Bouvier. 



horizontal line. Front bidentate, broadly emarginate. Chelipeds 

 covered with granules, coarser on merus than on manus ; legs slender, 

 covered with smaller granules. Inferior surface of body also gran- 

 ulate. 



Measurements. — Male (66514), length of carapace 5.6, width 5.4 

 mm.; female, length 5.8, width 5.7 mm. 



Range. — West Florida to Barbados; 4 to 80 fathoms. 



Material examined. — See table 38, page 127. 



EBALIA CARIOSA (Stimpson) 



Plate 35, Figures 6, 7 



Lithadia cariosa Stimpson, Ann. Lye. Nat. Hist. New York, vol. 7, p. 238, ISGO 



(type locality, Beaufort, N. C; type not extant). — Rathbtjn, Ann. Inst. 



Jamaica, vol. 1, p. 39, 1897. — Hay and Shore, Bull. U. S. Bur. Fisheries, 



vol. 35 (1915-16), p. 424, pi. 32, fig. 6, 1918. 

 Ebalia (Lithadia) brasiliensis von Martens, Arch, fur Naturg., vol. 38, p. 115, 



pi. 5, figs. 10, 10b, 1872 (type locality, Bay of Rio de Janeiro; type in 



Berlin Mus.). 

 Lithadia lacunosa Kingsley, Proc. Acad. Nat. Sci. Philadelphia, 1879, p. 403, 



1880 (type locahty, Sarasota Bay, Fla.; type, U. S. N. M. no. 42226). 

 Lithadia geometrica Boone, Bull. Bingham Ocean. Coll., vol. 1, p. 45, fig. 9, 



1927 (type locality, Swan Island; type missing from Bingham Oceanographic 



Collection) . 



