56 POMATIOPSIS. 
9. AMNICOLA TURBINIFORMIS, Tryon. 
Plate 17, figure 6. 
Shell ovate, turbinated ; whorls very con- 
vex ; sutures impressed, spire obtuse at apex ; 
nearly four whorls; body large, well rounded, 
a little angulated on the periphery ; aperture 
widely ovate; umbilicus narrow. Color dark 
green, light blue within the aperture. 
‘Alt. 3°3, diam. 3 mill. 
N. E. California and S. W. Oregon. 
This species resembles Cincinnatiensis, but 
is smaller and more solid, with shorter spire, 
smaller umbilicus and darker color. It also 
differs in the periphery being slightly angled. 
Genus POMATIOPSIS, Tryon. 
1. POMATIOPSIS LAPIDARIA, Say. 
Hald., p. 18, t. i, f. 10. 
Occurs from Eastern New York to Iowa, 
and southward to Missouri and Georgia. 
(37) 
