12 DESCRIPTION OF 
Hab. Cincinnati, Ohio, T.G. Lea, Poland, Ohio. Dr. Kirtland. My Cabinet, and Cabinets of T. 
G. Lea, and Dr. Kirtland. Diam, .18, Length .32 of an inch, 
Remarks.—A very small erect species resembling in the form of the aperture, a Bul- 
mus, the fold being scarcely perceptible. In its general outline it resembles a Paludina, 
more than most Lymn@e. In these characters it is allied to L. bulimoides herein described. 
The aperture is rather more than one-third the length of the shell, and the last whorl is 
wrinkled. The columella is thickened, and reflected over the perforation. 
LYMNZA STRIGOSA. 
Testa longo-ovati, subobliqua, diaphand, striatd, corned, tenui, imperforatd; spird brevi; suturis impressis; anfrac- 
tibus quinis, subconvemis; apertura ovata. 
Shell long oval, somewhat oblique, diaphanous, striate, horn-coloured, thin, imperforate; spire short; sutures impressed; 
whorls five, somewhat convex; aperture ovate. 
Hab. Near Cincinnati, Ohio. T.G. Lea. My Cabinet, and Cabinet of T. G. Lea. Diam. 38, 
Length .75 of an inch, 
Remarks.—This is a very thin fragile species somewhat resembling LL. columella, (Say, ) 
but may at once be distinguished from that species by its longer spire and lese inflated 
body whorl. It is allied to L. coarctata, herein described, differing, however, in being 
more oblique and in having the whorls more inflated. The aperture is about three-fourths 
the length of the shell, and acutely angular above. 
Lymnaa KIrTLANDIANA. 
Testa turritd, tenui, enormiter striatd, pallido-corned, imperforatd; spird elevatd, attenuatd; suturis impressis; an- 
Sractibus senis, subconvemis; aperturd angusto-ellipticd. 
Shell turrited, thin, irregularly striate, pale horn colour, imperforate; spire elevated, attenuate ; sutures impressed ; 
whorls six, slightly convex; aperture narrow elliptical. 
Hab. Poland, Ohio. Dr. Kirtland. My Cabinet, and Cabinets of Dr. Kirtland and T, G. Lea. 
Diam, .26, Length .70 of an inch. 
Remarks.—Many years since Dr. Kirtland sent me several specimens of this shell. I 
am not aware of its having yet been described. It may have been mistaken for L. acuta, 
(nobis, ) being about the size and having the aspect of that shell. It may be distinguished 
from it, by having a longer and narrower body whorl, and a shorter and narrower aperture. 
The fold on the columella is smaller and the outer lip less curved. It is a smaller species 
than the reflexa, (Say,) has one whorl less and the mouth is longer. In other characters 
it resembles it, if the reflected lip be excepted. The aperture is rather less than half the 
length of the shell. Most of the specimens have an obscure brown line within the mar- 
gin of the outer lip. ‘The body whorl is disposed to be flattened, and is irregularly wrin- 
kled. Under the lens the fine strie which usually are found in the Lymnea, may be ob- 
served beautifully displayed over the whole shell. The superior portion of all the speci- 
mens sent, have more or less deposite of the oxide of iron, which gives them the appear- 
ance of having two colours. 
LYMNHA RUBELLA. 
Testa ovato-conicd, tenui, levi, nitidd, diaphand, rubella, imperforatd; spird breviusculd; suluris parvis; anfracti. 
bus quinis, subconvexis; apertura subgrandi, ovatd. 
Shell ovately conical, thin, smooth, shining, diaphanous, reddish, imperforate; spire rather short; sutures small; whorlg 
five, somewhat. convex; aperture rather large, ovate, 
