CYPR^EA. 19t 



In his description of C. limacina, Lamarck refers to two 

 figures, the one from Lister being a well-marked C. staphylsed, 

 while the other corresponds to C. interstincta. 



C. PUSTULATA, Lam. PI. 20, fig. 45, 46, 52. 



Lead-color, covered with transverse striae, and armed with 

 numerous prominent reddish pimples, those in the middle being 

 the largest ; base chocolate, teeth extending across the base in 

 conspicuous ridges, ribs whitish. Length, '5-'9 inch. 



Panama, Mazatlan. 



Younger shell (fig. 52) with the back cancellated but destitute 

 of pimples, which do not appear until the teeth have become 

 considerably developed. 



C. NUCLEUS, Linn. PL 20, figs. 48, 49. 



Whitish, nodules dull brown, the lateral ones united together 

 by fine ridges. Length, -55-'75 inch. 



Indian and Pacific Oceans. 



C. MADAGASCARIENSIS, Gmel. PI, 20, figs. 65, 66 ; PI. 19, fig. 38. 



Larger and much more depressed than the preceding, pustules 

 larger and less numerous ; the ridges on the outer lip are alter- 

 nately larger and smaller. Length, 1-1 '3 inches. 



Madagascar ; Sandwich Is. (Pease). 



C. granulata, Pease (PI. 19, fig. 38) is a younger example of 

 this species ; in it, the basal ridges are fewer, and do not extend 

 to the margin, but usually become obsolete as they approach it ; 

 in some specimens the dorsal ridges are also wanting. 



Section IV. (Epona, H. and A. Ad.) Shell globose, back either 

 smooth or with elevated tubercles, extremities produced. 



C. ANNULATA, Gray. PI. 20, figs. 50, 51. 



Ivory-white, smooth, irregularly painted with round yellow 

 spots, encircled with rings of a deeper tint, teeth very minute, 

 base white. Length, -6 inch. 



Mauritius, Philippines. 



C. CTCERCULA, Linn. PL 20, figs. 55-58, 61, 62. 



Yellowish, granulose, irregularly blotched with brown, sides 



