Land Snails

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Paravitrea ceres Hubricht, 1978

Family: Pristilomatidae
Common name: Sidelong Supercoil

Identification
Width: ~4.3 mm
Height: ~2.0 mm
Whorls: 6

This small shell is nearly disk-shaped (Hubricht, 1978). The final whorl is slightly expanded behind the aperture. The umbilicus is deep and approximately 20% of the shell’s width. Sculpture of the shell is irregularly-spaced indented growth lines above, not continuing onto the base. There are no denticles in adult shells, while dentition of immatures is uncertain. The animal is blueish-gray.

Ecology
Found in forest leaf litter (Hubricht, 1985).

Taxonomy
There are no synonyms. The taxonomy of the genus Paravitrea is in need of review (e.g. Dourson, 2015).

Distribution
Paravitrea ceres is endemic to eastern West Virginia.

Conservation
NatureServe Rank: G1, Critically Imperiled. NatureServe State Rank: West Virginia, S1.

Ken Hotopp 12/2017

Range Map (click to enlarge)