CANTIIARUS. 163 



FusKs Floridanus^ Petit (fig. 285), is undoubtedly a synonym 

 of tliis species. Neither of the figures nor the specimens before me 

 are adult, and the shell is so close to C. geinviatus, as to suggest 

 identity ; the sole distinctive characters being a more elevated 

 spire, and more convex whorls. 



C. TiNCTA, Conrad. PI. Y4, fig. 286. 



Irregularly variegated with chocolate- and chestnut-brown and 

 white ; margin of lip frequently tinted with orange-brown. Lon- 

 gitudinal ribs rather small, close, irregular or evanescent ; re- 

 volving ridges sometimes broken up into tubercles where they 

 cross the ribs ; spire conical, its whorls flattened. 



Length, 1 to 1-5 inches. 



Florida ; West Indies. 



The ribs are more numerous, but not so large nor so markedly 

 tuberculate as in C. Coromandelianus^ the latter possessing much 

 ruder sculpture and a decided shoulder on the body-whorl. 



,C. CoROMANDELTANUs, Lam. PI. 74, figs. 281-290. 



Chestnut-brown and white, variegated, under a thin, rather 

 smooth, dark olive epidermis. Length, '^5 to 1*25 inches. 

 PananiK. to Mazatlan, on rocks at low water ; West Indies ; 



Brazil; Coromandel? 



A very robust, wide species, rudely, prominently sculptured, 

 with very decided shoulder and produced posterior sinus. I can- 

 not detect any difference between the typical W. Indian (and 

 Coromandel?) form and G. ringens (fig. 288), from the West 

 coast of North America. G. pastinaca^ Reeve (fig. 289), from 

 the Bay of Montija, W. Columbia, is probably a variety only. 



Var. LAUTUS, Reeve. PL 74, fig. 290. 



Differs from the type in coloration, the prevailing arrangement 



being chestnut variegated with white on the nodules, with a white 



band on the periphery ; sometimes the shoulder and base of the 



shell are both white, when it appears to have two irregular brown 



bands upon a white ground. 



West Indies. 

 C. Haneti, Petit. PI. 74, fig. 302. 



Blown, with reddish brown revolving lines ; strongly longi- 

 tudinally ribbed. Length, 37 mill. 



Near Rio Janeiro, Brazil. 



