18 CONUS. 



usually invested with a rather thin brown epidermis ; aperture 

 more or less tinged with chocolate. Length, 25-33 mill. 



California. 

 C. dealbatus, A. Ad. (fig. 63), is a synonym. 



C. UNIFASCIATUS, Kicner. PI. 4, fig. 65. 



Shell the general form of C. Calif ornicus; chocolate, with a 

 rather broad yellowish brown band just below the shoulder. 



Length, 1 inch. 



Habitat unknown. 



Dr. Weinkaiiff makes this a juvenile of C. venulatus, Hwass, 

 but it does not appear to me to be closely allied to that species, 

 either in form or coloring ; on the contrary, its resemblance to 

 C. Californicus is so grea that I feel nearly certain that it 

 should be united with that species. 



C. SCALPTUS, Reeve. PL 4, fig. 64. 



Shell turbinated, rather solid, polished, grooved towards the 

 base ; whitish, with numerous hair-like, light brown, revolving 

 lines ; spire spirally striated, rather elevated, with sharp apex, 

 variegated with chestnut-color. Length, 1 inch. 



Habitat unknown. 



Dr. Weinkauff gives California as locality, but this must be 

 considered very doubtful, as the numerous collectors on that 

 coast have not yet discovered it. 



Section IV. ARENATI. 

 Puncticulis, Swains., Morch. 

 C. ARENATUS, Hwass. PL 4, fig. 66 ; PL 21, fig. 2. 



Shell stoutly turbinated, coronated on the spire ; white, 

 sprinkled in a waved longitudinal manner with very small, close 

 brown dots, sometimes forming indistinct bands ; aperture 

 usually light flesh-color. Length, 2 inches. 

 Jted Sea, E. Africa, Ceylon, Philippines, N. Caledonia, Viti Isles. 



Vnr. MESOKATHAROS, Melvill. PL 21, fig. 2. 



Middle portion of body-whorl unspotted. 

 'C. OBESUS, Hwass. PL 4, fig. 67. 



Shell obsolete!}" coronated with tubercles, body-whorl some- 

 what convex, stout ; white or veiy pale yellow or blush, faintly 



