38 CONUS. 



C. SELECTUS, A. Adams. PL 11, fig. 3. 



Shell thin, encircled by brown punctate lines, ^contracted and 

 sulcate at the base, slightly swollen at the sides, acutely angulate 

 at the spire. Length, 1 inch. 



Habitat unknown. 



A species of doubtful validity, not very different from the 

 following. 



C. FLORIDANUS, Gabb. PI. 11, figs. 4, 5. 



Spire elevated, somewhat tabulate ; body-whorl with straight 

 sides, grooved towards the base ; yellowish white, mottled and 

 streaked with chestnut, with an obscure central white band, and 

 another narrower one at the shoulder, between the bands often 

 encircled with rows of brown spots. Length, 1-4-2 inches. 



Florida, Bahamas. 



C. Floridensis, Sowb. (fig. 5), is a synonym. 



C. SIEBOLDII, "Reeve. PI. 11, figs. 6, T. 



Spire rather elevated, the sutures sharply carinate ; body- 

 whorl narrow, grooved below; white, with a few central 

 chestnut blotches. Length, 2 inches. 



Japan, China. 



C. rarimaculatus, Sowb. (fig. 7), is probably the young of 

 this species. 



C. PAPILLARIS, Ad. and Reeve. PI. 11, fig. 8. 



Spire elevated, somewhat tabulate, finely tuberculated ; white, 

 longitudinally streaked in a clouded manner with orange-brown. 



Length, 1'75 inches. 



Borneo. 

 C. GRADATULUS, Sowb. PL 9, fig. 57. 



Spire elevated, gradate, with channeled whorls; body-whorl 

 roseate ; with three series of longitudinal maculations of 

 chestnut-color, forming interrupted bands ; aperture ros}^ 



Length, 1*75 inches. 



Agulhas Ba,nk, So. Africa. 



Described b}' Sowerby as C. turritus, a name preoccupied by 

 Lamarck for a fossil species. 



C. OPTABILIS, A. Ad. PL 11, fig. 9. 



Spire elevated, slightly gradate, body-whorl slightly grooved 

 towards the base ; color uniform roseate. Length, *8 inch. 



Habitat unknown. 



