﻿June, 1856.] elliott society. 35 



jecting slightly beyond the vaulted portion of carapace, when the legs are 

 extended laterally ; those of fourth and fifth barely reaching it in like cir- 

 cumstances. 



Dimensions. — Length 1.30 of inch, breadth 2.40 of inch. 

 Color. — In dry specimen, yellowish white or flesh color. 

 Inhabits Indian Ocean, and Coasts of Hindostan. 



Remarks. — The description above given, and the figure, are drawn from 

 a specimen in the Collection of the Boston Society of Natural History, and 

 accord in the main with the descriptions of Herbst, Desmarest, and M. Ed- 

 wards. The only figure that we have seen, and, indeed, the only one to which 

 reference is made by the authors within our reach, is Herbst's figure. Herbst 

 says that he received his specimen from Fabricius himself, who appears to 

 be the first describer of the species under the name of Cancer fornicatus ; his 

 figure differs from our specimen in some points, the number of the teeth or 

 dentations on the anterior edge of the third segment of the first pair of feet 

 are much more numerous than in the individual we have described, and he 

 represents the rostrum with a sharp point and serrated edge, in our speci- 

 men it was rounded at tip, at the edge was entire. 



2. Cryftopodia Granulata. 

 Synonymes. — Cryptopodia granulata, L. R. Gibbes, Proceed. Amer. Assoc., 

 vol. 3, p. 173. 1850. 



Description. — Carapax in outline in form of triangle, with sides slightly 

 convex, and middle two-thirds of base rather prominent ; the altitude of tri- 

 angle being a little more than half its base; ros/rw^/horizontal, rounded at 

 the apex, upper , surface plane, prolonged backwards for one-third of the 

 length of the carapace ; this surface bounded laterally by parallel ridges, and 

 posteriorly by a transverse ridge ; from this ridge, on each side, there runs 

 backwards and outwards a ridge nearly parallel to latero-anterior edge of 

 carapax, and terminating on the posterior edge at a point distant from lateral 

 angle of carapax, about one-sixth of the length of posterior edge ; these two 

 ridges, with the part of the posterior edge, comprised between them, en- 

 close a surface nearly plane and of triangular form, in the centre of which 

 rises a rounded boss or prominence, covered with granules closely set ; from 

 these two ridges, above mentioned, the surface slopes precipitously to the 

 latero-anterior edges ; these sloping surfaces are in the form Of low trape- 

 zoids, and the shape of the shell may be compared to a low frustrum of a 

 triangular pyramid inclining backwards ; whole upper surface of the cara- 

 pace smooth, except the edges and ridges, which are lined with small granu- 

 lations ; under surface of shell smooth, prolonged laterally in the form of a 



