Nesovitrea - Glass Snails (Family Zonitidae) 

Glass snails are small (4.5-5.4 mm diameter) snails whose whorls increase rapidly and have narrow radial indentations, reminiscent of Glyphyalinia, in addition to faint growth lines. Two species are in the collections: the Amber Glass Snail, Nesovitrea electrina, and the Blue Glass Snail, Nesovitrea binneyana

Nesovitrea electrina (Gould, 1841)

Nesovitrea electrina (Gould, 1841)

Amber Glass Snail
Nesovitrea electrina (Gould, 1841)

no image available

Blue Glass Snail
Nesovitrea binneyana (E. S. Morse, 1864)

Characters:  Heliciform, simple lip, subglobose to depressed, umbilicate to perforate, 4-5 mm; umbilicus wide; glossy with clear narrow radial lines, about 4 rapidly enlarging whorls, apertural lip circular.

Comparison: The Amber Glass Snail is larger (~4.5-5.5 mm diameter) than the Blue Glass Snail (less than 4.5 mm diameter). Their color also differs, the Amber Glass Snail being more yellow/green and the Blue Glass Snail more whitish.

Habitat: Both can be found in woodlands, among leaf litter and woody debris, but Neosvitrea electrina also seems to prefer moister environments.

Status: Neosvitrea electrina is the more common of the two species, but still uncommon. Status in unknown. The Blue Glass Snail is only known from 2 sells collected in 1956 in Posey County. NatureServe lists Nesovitrea binneyana as possibly extirpated. Status in unknown.