LAMPAS. 39 



brown ; flesh-color within the aperture ; in the young shells 

 orange-red within the aperture and on the lip. 

 Length, 3 to 9 inches. 



Red Sea, Indian Ocean, Philippines, Ins. Viti, Mauritius. 



The most ponderous species of the genus. The half-grown 

 shell, when 3 to 5 inches long, is quite thick and already pos- 

 sesses adult characters ; it is more highly colored than the larger 

 specimens. 



R. BUFONIA, Gmelin. PI. 21, figs. 21-23, 28, 29, 68 ; PI. 19, fig. 

 11; PI. 20, figs. 13, 14. 



White, brown punctured and spotted ; lip and interior white 

 or yellowish. Length, 2'5 inches. 



Red Sea, Philippines, Seycftelles, I. Bourbon, Paumotus, etc. 



R. tuber osissima, Reeve (fig. 14), is the young of this species, 

 with the lip-margin and interior more deeply yellow stained. 

 It. asperrima (fig. 29), and Gray ana, Dunker (fig. 28), are synon- 

 ymous. 



Var. VENUSTULA, Reeve, PL 20, fig. 13. 



Lip and columella stained with very dark purple ; aperture 

 roseate within. R. siphonata, Reeve, (PI. 19, fig. 11), is a 

 synonym. 



R. CRUENTATA, Sowb. PI. 21, figs. 24-27, 30, 31. 



Light yellowish or brownish white, the principal tubercles 

 frequently maculated with red ; white or rosy within the aper- 

 ture, columella sometimes with dark red spots. 



Length, -75 to 1*5 inches. 



Mauritius, Philippines, West Indies. 



The spots on the columella are not always present in the Phil- 

 ippine specimens constituting the type form, and are not found 

 in the variety. This species is very closely related to R. bufo- 

 nia, but is uniformly much smaller and the siphon is not con- 

 tinued up the spire in the peculiar manner of that species. 



R. verrucosa, Sowb. (fig. 27), is a rather remarkable looking 

 shell, as represented in the monographs, but is nothing else than 

 a worn specimen of R. cruentata, in which the nodules become 

 smooth and darker in color. I have before me several 



