160 PHYSA. 
40. PHYSA SOLIDA, Pail. 
Plate 8, fig. 6. 
Shell perforate, longitudinally ovate, solid, 
pale horn-color; whorls six, arched, apical 
whorls pointed, comprising one-third the 
whole length of the shell; mouth narrowed 
by the thickening of the lip; columella not 
folded. 
Length 15, diam. 10 mill. 
New Orleans. 
The number of whorls and inflated form 
together with its solidity will serve to distin- 
guish it from other species. 
Mexican Species. 
There are quite a number of these, and I 
would have omitted them entirely from this 
work if none had been included in the mono- 
graphs of Haldeman and Binney. I confine 
my remarks to those species only mentioned 
by above authors. 
(76) 
