62 
large pyramidal tooth at the base; epidermis horn 
coloured, with obscure bands; aperture effuse. 
OBSERVATIONS. 
Inhabits streams in Virginia. Mr. Hyde. 
I received a specimen of this curious species from 
Professor Green of Jefferson College. 
ANCULOTUS PICT US. 
DESCRIPTION. 
Shell oval; spire short, convex; apex eroded; body 
whorl slightly compressed in the middle; epidermis 
horn-coloured, with numerous series of small angu- 
lar spots; spots distinct within on the labrum; aper- 
ture obovate, base regularly rounded. Length five- 
eighths of an inch. 
Anculosct pzcta, nob. Silliman 5 s Journal, vol. ii. 
p. 342. pi. i. 15. 
OBSERVATIONS. 
Inhabits pebbles on the bars in the Alabama river, 
near Claiborne. 
ANCULOTUS PUMILUS. 
DESCRIPTION. 
Shell very small, obliquely oval, blackish; spire 
consisting of one entire convex whorl; apex eroded; 
