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. 

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.