[ 1^8 ] 



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. CA\yr.Qyr:'s.c!' 



Whole Atlantic Coast of the United States. 



3. Melampus flavus, Gmelin. 



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 AVest Indies.) 



4. Melampus coflfea, 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 beloAV 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. Cri r< ^^: 



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 (5 



