CON US. 41 



G. citrinus, Kiener (fig. 18), and C. si^/p/mm^us, Kiener (fig. 

 17), are half-grown and young specimens; C. tennis, Sowb. (PL 

 27, fig. 5), is another young shell, but differing in color. 



Yar. CECILIA, Chenu. PL 12, fig. 24: PL 27, fig. 6. 



Shell colored like the type, but encircled with punctations 

 impressed in lines. 



C. classiarius, Kiener (PL 12, fig. 24), is probably identical. 



C. RATTUS. Hwass. PL 12, figs. 25-27. 



Shell yellowish brown or ash-color, often with fine close chest- 

 nut revolving lines, with large white spots and maculations 

 usually forming an interrupted central band and another at the 

 shoulder. Length, 1'25-1'75 inches. 



Bed Sea, Ceylon, New Caledonia, Tahiti, etc. 



C. Taheitensis^Hw&ss (fig. 26), is a color-variety of this spe- 

 cies, and C. viridis, Sowb. (fig. 27), is an unusually colored 

 juvenile. 



C. SEMIVELATUS, Sowb. PL 12, fig. 29. 



Shell plum-color, indistinctly light-banded in the middle and 

 on the shoulder; aperture purple. Length, 16 mill. 



Red Sea. 

 C. LISCHKEANUS, Weinkauff. PL 12, fig. 28. 



Whorls of the spire with shallow channel, body-whorl smooth, 

 striate at the base ; sulphur-yellow, without ornamentation except 

 maculations on the spire ; aperture white. Length, 52 mill. 



Japan. 



Resembles C. mutabilis, Chemn., but is immediately distin- 

 guished by its channeled spire. 



C. CLASSIARIUS, Hwass. PL 12, figs. 30-34. 



Shell olive-brown, or ash-color, with a white central band, and 

 usually another obsolete one below the shoulder-angle, encircled 

 by numerous chestnut and white articulated lines ; spire macu- 

 lated with chestnut ; aperture light chocolate with central white 

 band. Length, r25-l'75 inches. 



Eed Sea. 



C. Blainvillei, Kiener, and C. splendidulus, Sowb. (fig. 31), are 

 identical, and C. Ruppellii, Reeve (fig. 32), and C.adustus, Sowb. 

 (fig. 33), are young shells. 



