194 Mrs. Sheppard on 
within white, margins reflected.” Found on the bank near 
the plains of Abraham. Commonin spring. 
Helix ——? Shell thin, conoidal, perforated; spire 
very flat; margin of the lip reflected. 
Common in the same place with the above ; it is a much 
less shell, with a brown epidermis ; the penultimate whorl 
has an elevated white ridge near the aperture, which appears 
to be some remains of the last year’s lip, 
Corocolla- 
«¢ Shell orbicular, rather convex, or conoidal; on the upper 
part, with a sharp angular periphery. Aperture transverse, 
contiguous to the axis of the shell, right lip subangular, of- 
ten toothed on the lower part.” 
De Lamarck formed this genus merely to reduce the num- 
ber of species in that of Helix: they are, however, rather 
too closely allied. The species we have here, seems to bea 
connecting link ; but De Lamarck, would, I think, range it 
under corocolla, and until it be ascertained to have been pre- 
viously described might be called 
Corocolla dubia. Shell orbicular, Jargely umbelicate ; 
spire flat, whorls transversely striated, horn colour, spotted 
with brown, Common in the spring on the bank with the 
two foregoing shells ; it is rather a pretty shell, ofteu varie- 
gated with white and brown. 
Succinea. 
‘¢ Shell ovate, conical ; aperture capacious ; right margin 
sharp, not reflected, united at the lower part to a smooth 
acute columella. The animals have four tentacula, two of 
which have eyes on their summit.” They inhabit land but are 
generally found near water. 
Succivea amphibia, ‘shell ovate, thin, pellucid, yellowish ; 
spire short, dilated at the lower part, subvertical.”’ lIahabits 
gardens on the St. Louis road ; it is horn coloured, and very 
4ransparent. 
LYMNZANA 
