14 CONUS. 
Distinguished from C. trochulus by its narrower, straighter 
form, the sulcated body-whorl and striated spire. 
C. cyanostoma, A. Ad. PI. 3, fig. 44. 
Shell doubly striated on the spire, with revolving striz 
towards the base; ash-color, with longitudinal, brown markings, 
aperture violaceous. Length, 1 inch. 
West Africa. 
May perhaps = C. trochulus, Reeve, as suggested by Wein- 
kautf, but none of my specimens of the latter species have strize 
on the spire, and they are all white, as in all the published figures. 
C. ctarus, E. A. Smith. 
Shell abbreviately turbinate, rosy white, suleate towards the 
base; spire depressed-conical, striate; angle of body-whorl 
carinated; aperture light rosaceous. Length, 27 mill. 
West Australia. 
Ay, unfigured species, represented by a single specimen in the 
British Museum. It is said to somewhat resemble C. cyanostoma, 
A. Adams, but is narrower. 
C. rricipus, Reeve. Plate 3, fig. 45. 
Shell pale straw-color, violaceous at base and apex; spire 
three-grooved, revolving striz on the lower part of the body- 
whorl, which become granulose towards the base. 
Length, 1 inch. 
Habitat unknown. 
A species having no well-marked characters. 
C. venuLatTus, Hwass. PI. 3, figs. 46-50. 
Color varying from light chestnut to dark chocolate, with 
indistinct darker revolving lines, irregularly marbled throughout 
with white; spire and lower part of body-whorl striate. 
Length, 1:25—2 inches. 
West Coast of Africa. 
The synonyms are C. nivosus, Lam. (fig. 47), and C. ateralbus, 
Kiener. Dr. Weinkauff considers C. unifasciatus, Kiener, a 
juvenile of the species, but does not state his reasons; the 
figure is so different that I cannot agree to place the species 
here. 
