COLLECTED IN CEYLON. 303 



Grenus Ctpridopsis, G. S. Brady. 

 Ctpeidopsis globosa, n. sp. (Plate XXXIX. figs. 1-8.) 

 Shell very tumid, almost globose : seen from .the side, the out- 

 line is very broadly subovate, the greatest height in tbe middle, 

 and equal to nearly three-fourths of the length ; extremities 

 broadly rounded ; dorsal margin excessively arched, ventral 

 slightly convex : seen from above, very broadly and regularly 

 ovate, widest in the middle, width and height equal, extremities 

 rounded, the anterior subacuminate. Surface marked with closely 

 set impressed puncta and densely clothed with short, rigid hairs. 

 Colour greyish white. Length -^ of an inch ("57 millim.). 



This species is very like some unhanded forms of the European 

 G. vidua, but the carapace is much more nearly globose, the 

 height and width being greater in proportion to the length. 



Ctpridopsis marmobata, n. sp. (Plate XXXIX. figs. 7-9). 



Shell very tumid, ovate, width slightly greater than the height : 

 seen from the side elongated, subreniform, highest in the middle, 

 height equal to about two-thirds of the length ; anterior ex- 

 tremity narrowed, obliquely rounded ; posterior well and broadly 

 rounded ; dorsal margin broadly arched, somewhat angulated in 

 the middle, ventral almost straight : seen from above, ovate, 

 widest in the middle, tapering and acuminate in front, broadly 

 rounded behind. The end-view is almost circular, the width being 

 slightly in excess of the height. Surface of the shell smooth. 

 Colour greyish or yellowish white, marked with irregular wavy 

 bands of black. Length -^ of an inch ('57 millim.). 



Like the preceding, this comes very near to G. vidua, and in 

 shape is even more like that species, but the surface-markings are 

 much less regular in disposition, the lateral view is rather more 

 elongated, and the shell is destitute of hairs, so far as can be 

 seen in dried specimens. 



Part II. — Marine Species. 



Genus Pontocxpris, G. O. Sars. 



PoNTOCTPRis nitida, u. sp. (Plate XXXIX. figs. 4-6.) 

 Shell, seen laterally, subtriangular, nearly twice as long as broad, 

 highest a little in front of the middle ; anterior extremity broadly 



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