CONUS. 17 



ash or chocolate cream-color, generally with an obscure light 

 central band, sometimes with more or less obscure chestnut 

 revolving lines, but generally these are absent; spire often 

 radiately streaked with chestnut. 



This variety is almost intermediate between the typical C. 

 figulimis and G. glaucus, Hwass. 



Yar. CHYTREUS, Melvill. PI. 27, fig. 1. 



Shell small, slightly turbinated, brown, encircled with unevenly 

 placed, thick, dark red-brown lines, aperture narrow, spire some- 

 what rounded. Length, -63 inch. Smaller and with thicker and 

 more irregular color-lines than the t} T pe ; aperture narrower. 



C. QUERCINUS, Hwass. PL 4, fig. 59. 



Shell lemon-yellow, with numerous fine, rather close, chestnut 

 revolving lines ; spire rather elevated, with concave outline, the 

 shoulder of the body-whorl obtiisel} r angulated. 



Length, 2-4 inches. ^ 



Red Sea, E. Africa, Mauritius, Ceylon, Philippines, 



Viti Islands, Sandwich Islands. 



The revolving lines are much finer and closer than in the pre- 

 ceding species of this group ; the form of the spire is also 

 different. Ir? old specimens the revolving lines become 

 obsolete ; the shell in this state has received the name of C. 

 ponderosus, Beck. 



C. PYRIFORMIS, Reeve. PI. 4, figs. GO, 61. 



Shell light flesh-color, the spire gently acuminate, the earlier 

 whorls tuberculated, body-whorl p} r riform, the outline concave 

 below, with revolving striae towards the base. 



Length, 2-3 inches. 



West Columbia, Panama, etc. 



C. patricius, Hinds (fig. 61), is the young of this species. 



G. CALIFORNICUS, Hinds. PI. 4, figs. 62, 63. 



Shell smooth, with convexly elevated spire, which is some- 

 times striate, and pyriform body-whorl, rounded or slightly 

 angulated at the shoulder, and striated towards the base ; light 

 olive-brown, with or without obscure chestnut reticulations and 

 maculations, sometimes light- or dark-spotted on the shoulder, 

 2 



