C148] 



the last obtusely angulated near the suture ; aperture long and 

 narrow, lip with or without laminae within, when present some- 

 times terminating in an obtuse white callus running parallel with 

 and slightly within the margin ; parietal wall and columella each 

 vith a fold. Horn color or brownish, with generally four or 

 five narrow reddish bands. 



Length 10 mill., diam. 5-5 mill. 



Whole Atlantic Coast of the United States. 



3. Melampus flavus, Gtnelin. 



Plate 18, figure 6. 



Obconic, smooth ; spire short, convex, suture slightly impres- 

 sed ; whorls 9-10 ; aperture narrow, lip with about ten transverse 

 ribs within, parietal wall and columella each with a prominent 

 fold. Chestnut color, with three equidistant revolving light 

 colored bands. 



Length 13, diam. 8-6 mill. 



Florida. (From West Indies.) 



4. Melampus coffea, Linneus. 



Plate 18, figures 7, 8. 



Obconic, solid, smooth and shining, with microscopic revolv- 

 ing lines ; spire short conic, apex black, pointed ; whorls 9-10, 

 the last angulated obtusely below the suture ; aperture narrow, 

 lip thickened within, with from 15-22 transverse laminae, colu- 

 mella with a prominent fold, and two teeth on the parietal wall. 

 Dark brown with three or four white revolving bands. 



Height 19, diam. 10 mill., usually smaller. 



Florida (from West Indies. 



TRALIA, Gray. 

 1. Tralia pusilla, Gmelin. 



Plate 18, figure 9. 



Ovate, solid, smooth, shining, with microscopic revolving 

 lines ; spire lengthened conic, with acute, black apex ; whorls 6 



