64 SOMATOGYRUS. 
apex acute; body whorl well rounded, with 
aperture ovate, broadly rounded below ; pillar 
lip slightly reflected, but not quite covering 
the umbilicus. Dark olive-gray. 
Alt. 3, diam. 2°5 mill. 
Powell’s River, E. Tennessee; Stephenson, 
Ala. 
With the same number of whorls as S. inte- 
ger, Say, this species is much smaller and more 
solid. 
7. SOMATOGYRUS INTEGER, Say. 
Plate 17, fig. 16. 
. Subglobose, horn color, volutions rather 
more than three, rounded, obsoletely wrinkled ; 
spire very short, less than: half the length of 
the aperture, suture rather deeply impressed ; 
body whorl large, aperture dilated ovate, acute 
above ; columella flattened, polished ; labrum 
regularly rounded; base regularly rounded; 
umbilicus none. 
Alt. 5, diam. 4°5 inch. 
Inbabits the Ohio river and tributaries. 
(45) 
