Genus Cypnp.a. 217 



These species are usually considered forms of one, but I 

 fancy there is more difference between them than is usually 

 given credit for. 



C.fabula is ovate, stunted, not spotted at the extremi- 

 ties, dorsal surface suffused with brown, laterally thickened, 

 base white, mouth narrow, teeth coarser than in the next. 



C.felina and its variety iirsellus (Gmel.) (the latter charac- 

 terised by white base as opposed to yellow in the typical 

 form) are cylindrical, not thickened laterally, spotted very 

 clearly, with large blotches at the sides, dorsal surface 

 cinereous, brown extremities spotted, mouth wide, teeth 

 about fourteen in either lip. 



C. caiirica (L). The type of this abundant mollusc is 

 well given by Sowerby, Thes. Conch., pi. xxiii., f 188, 189, 

 and Reeve, Conch. Icon., pi. xi., f 46. Reeve says truh-, 

 " This specimen varies from long and rounded forms with 

 thin sides, to short and depressed with thickened sides." 

 Long. max. i^s inch. A small full grown form from my 

 collection may be seen in the plate appended (fig. 9), only 

 ^ inch in length. East Indies, general. 



{a) oblongata (van nov,), (fig. 8). Shell oblong, thinner 

 than the type, and often of much greater length, say 2]/^ 

 inches, somewhat effuse, back pale green, densely clouded 

 over with brown confused markings. Sides rounded, thin, 

 scarcely spotted, in one of my specimens dark banded, teeth 

 about eighteen, not so prominently developed as in the type, 

 base usually yellowish white, the base of typical caurica being 

 usually flesh colour, and mouth wider. Same localities as 

 above. There is every gradation between this and the typical 

 form. This may be C. dongata (Perry), cf. Conch., pi. xxii., 

 f. 5, but the delineation is, as usual, fantastic in the extreme. 



{b) concava (Owen). An almost distorted state from R. 

 Gambia ; cf. Sow., Thes. Conch., pi. xxix., f 318, 319. 



[c] obsciira (Rossiter). A black banded var from New 

 Caledonia, 

 p 



