MELAMPUS. 167 



Mdampus torosa MORCH, Cat. Yold. p. 38. 



Jfelamjws momlis SHUTTLE WORTH, Diagn. No. 7, p. 162. 



DESCRIPTION. 



Animal not observed. 



Shell imperforate, obconic, smooth, 

 chestnut-colored, with 3 light, narrow 

 bands ; spire short, convex conic ; suture 

 slightly impressed ; whorls from 9 to 10, 

 the upper ones flattened, the last about 

 equalling f of the length of the shell, arcuately ridged 

 below ; aperture subvertical, narrow, angulated below ; 

 one deep parietal fold, one subvertical, stout columellar 

 fold, extended towards the base ; peristome straight, acute, 

 its outer margin reddish, thickened with white within and 

 furnished with 10 short, transverse ribs, its columellar por- 

 tion expanding and callous. 



Length, 12 ; breadth, 8^ ; length of aperture, 9| ; breadth 

 at the middle, 3 millimetres. 



Geographical Distribution. Collected in Florida by Mr. 

 Bartlett. 



Remarks. This species is a well known inhabitant of 

 the West Indian Islands, but whether its presence in 

 Florida is accidental or not, I cannot say. It is readily 

 distinguished from the other Florida species. 



The synonymy is Pfeiffer's. 



MELA3IPUS OBLIQUUS SAY. 



Obconic, reddish brown, rather thick ; spire very little elevated ; 

 whorls eight or nine, wrinkled across ; labiura with two very dis- 

 tinct teeth, and an intermediate and equidistant slight obtuse prom- 

 inence ; inferior tooth very oblique, terminating at the base ; labrum 

 with about eight teeth or striae, which terminate on the margin ; 

 base of the aperture a little contracted by the basal tooth. 



