CONUS. 55 



mistaking that gentleman's name for Adanson, has supplied the 

 locality of West Africa. 



C. MISER, Boivin. PI. 16, fig. 20. 



Shell with convex body-whorl and flattened, striate spire ; yel- 

 lowish, without maculations, aperture white, dilated in front. 



Length, 27 mill. 



Cape Verd Is. 

 C. MERCATOR, Linn. PI. 16, figs. 21-23. 



Shell yellowish or ash-gray, often faintly longitudinally lined 

 with chestnut, with a broad band at the shoulder and a narrower 

 one at the middle, of white closely reticulated with chestnut. 



Length, 1-1*25 inches. 



West Indies, West Africa. 



Var. DESIDIOSUS, A. Ad. PI. 16, fig. 23. 



Shell chocolate-brown, the bands of reticulations narrower, 



spire more elevated. 



W. Africa. 

 C. CUNEOLUS, Reeve. PL 16, figs. 24, 25. 



Shell shortly turbinated, wide at the shoulder, somewhat 

 inflated ; chestnut- or chocolate-brown, with small white macula- 

 tions, forming an obscure band at the shoulder, and another 

 below the middle, as well as somewhat scattered over the rest of 

 the surface, including the convex spire. Length, 1*25 inches. 



West Africa. 



C. balteus, Mawe, is a synonym. 



C. NATALIS, Sowb. PI. 16, figs. 26, 21. 



Shell oblong, thin, smooth, angulated at the shoulder, sulcate 

 below; roseate, minutely angularly lineate with brown, and 

 bifasciate with large maculations, spire maculate. 



Length, 1 inch. 



Natal. 



Weinkauff makes this a variety of C. mercator, but it appears 

 to differ considerably in coloration. Sowerby's smaller figure 

 (fig. 27) is supposed to represent a young shell of this species. 



C. OLIVACEUS, Kiener. PL 16, figs. 28-31. 



Shell somewhat top-shaped, with rounded shoulder, sulcate 

 towards the base ; obscurely marbled with yellowish olive and 



