SOLARIUM. 11 



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

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

 S. maximum. The clistiuguishing characteristics are the basally 

 IH-ojccting rib of the periphery and the absence of the usual rib 

 and sulcus below the periphery. 



S. REGIUM, Ilanley. PI. 2, tig. 30. 



Umbilical crenulations white ; whorls spirally bisulcatc 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. 



Diam. 1-2 inches. 



Habitat unknoion. 



In sculpture this species resembles S. quadficeps ; the color 



bands are its chief characteristics. 



S. PURPULiATUM, Hinds. PI. 4, figs. 4! , 42. 



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

 mum ; color dark pur[)lisb 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. 



Diam. 1'5 inches. 



3Ioluccas. 



S. stellatum, Phil., is a s^-nouym. 



This species differs from 5'. maximum in the darker color, the 

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

 tions of the umbilicus. 



S. GRANULATUM, Lam. PL 5, figs. 53, .'34. 



Umbilicus contracted, crenulations ver^- strong; whorls s[)ir- 

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

 im[)ressed 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. Diam. 2 inches. 



No7-th Carolina to West Indies ; 



Panama to L. California. 



