LAMPAS. 39 



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

 orange-red within the ai)erture and on the lij). 

 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 ; PL 19. fig. 

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



White, brown punctured and spotted ; lip and interior white 

 or 3'ellowish. Length, 2"5 inches. 



Bed Sea, Pliilipinnes, Seychelles, I. Bourbon, Paumotus, etc. 



B. tuherosissima^ Reeve (fig. 14), is the young of this species, 

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

 R.asperrima (fig. 29), and Grayana^ 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, (PL 19, fig. 11), is a 

 synonym. 



R. CRUENTATA, Sowb. PL 21, figs. 24-2t, 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, -tS 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. hufo- 

 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 



