SOLARIUM. 11 



This shell, which is just approaching maturity, has the color 

 and sculpture of the upper surface very much like to that of 

 S. maximum. The distinguishing characteristics are the basally 

 projecting rib of the periphery and the absence of the usual rib 

 and sulcus below the periphery. 



S. REGIUM, Hanley. PI. 2, fig. -30. 



Umbilical crenulations white ; whorls spirally bisulcate near 

 the suture, ribbed at the periphery, spirally sulcate and ribbed 

 above and below the periphery and near the umbilicus; color 

 purplish flesh, with an interrupted chestnut band spreading from 

 the suture beyond the second sulcus, one on the rib above the 

 periphery and a very fine interrupted band just above the rib. 



Piam. 1-2 inches. 



Habitat unknown. 



In sculpture this species resembles S. quadriceps; the color 

 bands are its chief characteristics. 



S. PURPURATUM, Hinds. PI. 4, figs. 41 , 42. 



Umbilical crenulations pale fuscous ; sculpture as in S. maxi- 

 mum ; color dark purplish ash with a double band of chestnut 

 near the suture, periphery and the superior rib plentifully 

 blotched with duplicated brown spots; base slightly convex, 

 plentifully marked with radiating reddish brown streaks. 



Piam. 1 -5 inches. 



Moluccas. 



S. Stella turn, Phil., is a synonym. 



This species differs from S. maximum in the darker color, the 

 duplicated spots, the more convex base and the fuscous crenula- 

 tions of the umbilicus. 



S. GRANULATUM, Lam. PI. 5, figs. 53, 54. 



Umbilicus contracted, crenulations very strong; whorls spir- 

 ally sulcate with four principal sulci and traces of others, the 

 impressed growth-lines of the spire breaking the surface into 

 coarse granules ; color purplish ash or livid flesh, with a band 

 of distant yellowish brown spots next the suture and a few light 

 spots sprinkled over the surface ; base many ribbed and crenated, 

 ribs specked with yellowish brown. Piam. 2 inches. 



North Carolina to West Indies ; 



Panama to L. California. 



