30 



whorl somewhat channelled ; spire short, pointed, with small 

 tubercles near the summit : beak slightly curved, rather open. 

 Length 1 inch. 



Locality, Claiborne, Alab. >T^->" 



Cab. Acad. N. S. 



4. F. thoracicus. PI. 15. fig. 6. ' 



Shell fusiform, with seven or eight revolving, elevated 

 costse on the body whorl, and longitudinal raised striae : su- 

 tures deeply channelled : whorls six ; two costae on each 

 whorl of the spire. Length about an inch. 



Locality, Claiborne, Alab. 



Somewhat resembles F. quadricoutatus, Say'. 



Cab. Acad. N. S. 



MELONGENA. 



M? armigera. PI. 16. fig. 1. 



Shell subglobose, ponderous ; body whorl with a double 

 row of short, thick spires, one on the shoulder, the other near 

 the middle : three or four strongly impressed lines towards 

 the base : columella and lip callous ; basal emargination pro- 

 found, spire subconical, convex, constituting nearly half of 

 the shell, the humeral spires revolving upon it. Length 2 

 inches. Breadth 2 inches.' 



Locality, Claiborne, Alab. 



Cab. Acad. N. S. 



MUREX. 



M. engonatus. PI. 16. tig. 2. 



Shell thick, fusiform, transversely striated, umbilicated, 

 with six angular varices on the body whorl, the striae passing 

 over them; whorls six in number, and the varices continued 

 in direct lines to the apex : beak rather thick ; canal narrow. 

 Length 1 inches. 



Locality, Claiborne,. Alab. 



Cab. Acad. N. S. 



[52] 



