64 PHYSA. 
iarrow, the lip much thickened within; colu- 
aellar lip heavy, polished, slightly twisted 
nd turned back; texture thin, diaphanous, 
urface almost unmarked by growth-lines, 
williantly polished, and bright oil-colored ; 
olumella tinged with pink, lip margined 
vith dark red. 
Length 12, diam. 7 mill. 
Western and Southern States. 
This species, of which I have seen nume- 
ous examples of all ages, is much shorter in 
he spire, more oval, and differently colored 
rom Ph. gyrina, Say. Ph. brevispira, Lea, is 
lifferently colored and more inflated, and 
inally Ph. Primeana, nob., is a smaller spe- 
les, with distinct strige, longer spire and more 
nflated. It is, I think, the most beautiful 
pecies of the genus yet detected in the 
Jnited States. 
The above is my description of Ph, oleacea, 
vhich I reproduce here as a pretty full char- 
icterization of the species in which mine 
merges as a synonym. 
(80) 
