Specific Character.
A. testâ globosâ, lævi, (sub epidermide) albâ, fasciis fuscis ornatâ; spiræ levatæ apice obtuso; aperturæ margine albo, crasso; umbilico caret.
Shell globose, smooth, beneath the epidermis white with brown bands; spire elevated, tip obtuse; margin of the aperture thick, white; umbilicus none.
Martini 9. t. 128. f. 1135.
A distinct species, well characterised by the absence of the umbilicus, the situation of which is indicated only by a slight depression: the margin of the aperture all round is thickened, and white; but, from no groove being discernible, I suspect the operculum may be horny. The only specimen I have, is divested of the epidermis; it is obviously an old shell; and appears to agree with the figure of Martini, also taken from an uncoated specimen.
AMPULLARIA oblonga,
Oblong Apple Snail
A. testâ oblonga, lævi, tenui, fuscâ; spirâ levatâ, crassâ, obtusâ; aperturæ elongatæ basi contractâ; umbilico vix obsoleto.
Shell oblong, smooth, thin, brown; spire elevated, thick, obtuse; aperture lengthened, base contracted; umbilicus nearly obsolete.