
64 
ANCULOTUS MELANOIDES. 
Piate VUI.— Fig. 19. 
DESCRIPTION. 
Shell conical, with three entire volutions; apex 
eroded; whorls flattened, rounded only at the eiberés, 
lines of growth prominent; body whorl abruptly 
rounded; epidermis blackish, obscurely banded; aper- 
ture elliptical, about half the length of the shell. 
Leneth half an inch. — 
OBSERVATIONS. 
Inhabits rivers in North Alabama. 
ANCULOTUS NIGRESCENS. 
Prats VIIL--Fug,. 17. 
DESCRIPTION. 
_ Shell subconical, truncated or much eroded at the 
apex; superior whorl! hardly convex; body whorl elon- 
‘gated, contracted above on the labrum; columella flat- 
tened, obtusely rounded at the base; aperture ob- 
ovate, rather more than half the length of the shell; 
epidermis blackish; within dark purple. 
J am indebted to Mr. Hype for this shell; he in- 
forms me it inhabits rivers in Maryland. 
». 


