38 LAMPAS, 



Very close to R< crumenq, Lam,, and perhaps only a variety of 

 that species. It is usually smaller, more uniform in color, with 

 the granules of the surface closer, and more distinct, 



R, ALBIVABICOSA, Reeve, PI. 18, figs, 5, 6, 



White, stained with reddish brown ; varices usually white ; 

 aperture roseate. Length, 3 inches, 



India, Java, N. E. Australia. 



More inflated and thinner than the related species, 

 R. SUBGRANOSA, Sowb, PI. 19, fig. 8 ; pi. 18, fig. 7, 



Spire and canal more drawn out than in the preceding species, 

 not so much inflated ; tubercles less prominent. Marbled light 

 brown and white ; interior roseate. Length, 3 to 3'5 inches. 



Chinese Coast, Manilla. 



E. elegans, Beck (fig. 7), is a variety in which the two princi- 

 pal rows of tubercles are more spinosely developed. 



R. NANA, Sowb. PI. 20, fig. 15 ; PI. 19, fig. 9. 



Purple or reddish brown, with a white band ; lip and aperture 

 white. Shoulder of the whorls encircled by a row of tubercles, 

 rest of surface granulate or smooth. Length, 1\5 inches. 



Panama; in coarse sand, 10 fathoms (Cuming). 



The smooth form (fig. 15) is t3^pical ; the granulate shell has 

 been called by Sowerby, R. albifasciata (fig, 9), and may retain 

 its name as a variety. 



R. CRASSA, Dillw. PI. 19, fig. 10. 



Yellowish brown, irregularly banded with white and chestnut ; 

 lip and columella usually tinged with yellow. Shell thick ; sur- 

 face obsoletely or distinctly granulate, with frequently one or 

 two larger nodes on the middle of the front and back of the 

 angle of the whorls ; posterior canal long, bordered by the fim- 

 briated lip. Length, 1-25 to 2'5 inches. 



West Indies, Northern Coast of 8. America. 



Subgenus LAMPAS, Schum. 



R. LAMPAS, Linn. PL 19, fig. 12. 



Whitish or cream-color, stained and variegated with orange- 



