20 
hirsute vesture. I found several specimens of jejuna, during an 
excursion some time since into East Florida, at the Cow Fort on 
St. John River. It is in the collection of the Academy. 
II. CONCAVA. — Shell much depressed, suhorbicular, horn color, 
or whitish, immaculate ; volutions five, irregularly wrinkled across, 
more convex beneath ; suture distinctly impressed ; umbilicus 
very large, exhibiting all the volutions to the summit distinctly.; 
aperture large, short ; labrum towards the base very slightly and 
inconspicuously reflected. 
Inhabits Illinois and Missouri. Greatest width seven-tenths of 
an inch. 
Found in moist places near the Mississippi River, on the j\Iis- 
souri as high as Council Blufi, and on the Sea Islands of Georgia. 
It is a mucli dejmessed shell. . 
H. DKALI5ATA. — Shell conical, oblong, thin and fragile, some- 
what ventricose ; volution 6-7, wrinkled across, wrinkles more 
profound and acute on the spire ; spire elevated, longer than the 
aperture, sub-acute ; aperture longer than wide, labrum not re- 
flected ; umbilicus small and profound. 
Length more than three-fourths of an inch, breadth nine-twen- 
tieths of an inch. In the Cabinet of the Academy and Philadel- 
phia Museum. Inhabits Missouri and Alabama. 
In outline it resembles a Bulimus. Four specimens of this 
species were sent to the Academy from Alabama, by Mr. Samuel 
Hazard ; and a single depauperated specimen was found by myself 
on the banks of the jMissouri. 
II. PROFUNDA. — Shell pale horn color; spire convex, very little 
elevated ; whorls five, regularly rounded, and wrinkled trans- 
versely ; body whorl with a single revolving rufous line, which is 
almost concealed on the spire by the suture, but which passes for 
a short distance above the aperture ; aperture dilated ; labrum 
reflected, white, and excepting near the superior angle, fiat ; a 
slightly projecting callus near the base,*on the inner edge ; um- 
bilicus large, profound, exhibiting all the volutions to the apex. 
Transverse diameter nineteen-twentieths of an inch. 
Var. a. — Multilineated with rufous. Var. b., rufous line obso- 
lete. Inhabits Ohio, Mississippi and Missouri banks. 
A pretty shell, neatly ornamented with the rufous zone ; the 
spire is very much depressed. Specimens occurred near Ciuciu- 
