8 
^’o. 2. — Journal of Acadciny of Xatural Sciences, vol. i., p. 15 
ct sefjq. anno May 1817. 
SccciNEA OVALIS. — Shell suboval, pale j'ellowish, diaphanous, 
very thin and fragile, -with nearly three oblique volutions. Body 
very large ; spire small, but little prominent, somewhat obtuse. 
Aperture longitudinally subovate, large. Columella much nar- 
rowed, so as almost to permit the view of the interior apex, from 
the base of the shell. Scarcely any calcareous deposit on the pillar 
lip. Length nine-twentieths of an inch, aperture seven-twentieths. 
Inhabits marshy grounds in shaded situations ; common. Col- 
lection of the Academy. 
Animal longer than its shell, furnished with four tentacula, the 
two superior ones longer, cylindrical, supporting the eyes ; inferior 
ones short, conic. Color pale, with minute black points, which 
are' assembled into fascia on the sides and fillets on the neck above ; 
neck granulate above, a black line passes each side on the neck, 
from the tip of the oculiferous tentacula, gradually disappearing 
under the shell. Front truncate, quadrate. 
When the animal is living, so vitreous is the shell that all the 
markings of its body are plainly discernible ; so that although the 
shell is of a straw color, immaculate, it appears of a dusky hue, 
with a remarkable white, flexuous, longitudinal vltta on the back, 
arising from the suture and terminated about midway to the base, 
often with two or three obsolete white spots near its tip. The 
characters of the inhabitant are widely distinct from the animal of 
the Lymnma, and are somewhat allied to those of the inhabitants 
of the Helices ; it cannot, however, be referred to Helix with 
propriety, as will be evident from the specific description. I have 
for the present considered it as of Draparnaud’s genus Succinea, 
though it somewhat resembles a Bulimus, particularly in its habi- 
tat, being a terrestrial species, and in this respect it differs from 
Succinea. It may perhaps belong to Lamark’s genus Amphibu- 
limus. 
Helix hirsuta. — Shell subglobose, brownish, imperforated, 
covered with short, numerous, rigid hairs ; whorls five, but little 
rounded ; suture distinct ; aperture very narrow, almost closed by 
an elongated lamelliform tooth, situated on the pillar lip, and eir- 
