Virginia Land Snails


Photo(s): Anguispira strongylodes by Bill Frank ©, shell by Jochen Gerber ©.

Click photo(s) to enlarge.

Anguispira strongylodes (Pfeiffer, 1854)

Family: Discidae
Common name: Southeastern Disk

Width: 18 mm
Height: 10 mm
Whorls: 5+  

The shell of Anguispira strongylodes has a low heliciform shape with a deep open umbilicus, a thin lip, and strong radial ridges. It is distinguished from A. alternata only by its reduced color pattern. Its chestnut-colored spots are smaller, and there are no radiating streaks.

In Tennessee, Anguispira strongylodes has been found in close association with limestone and neutral soils, very steep slopes and high elevations, and late-successional forests, particularly oak-cedar forests (Coney et al, 1982).

Synonyms for A. strongylodes are Anguispira alternata strongylodes, A. a. crassa, A. a. macneilli, A. crassa, A. macneilli, Helix strongyloides, and Pyramidula alternata rarinotata.

This animal has been reported in 15 southeastern states, from east Texas to northern Florida, north to Illinois and Virginia.  The easternmost occurrence of this species in Virginia is a sub-fossil shell reported by Hubricht (1985) in Halifax County.

NatureServe Global Rank: G5
NatureServe State Rank: SX


Greg Kimber, Ken Hotopp, Meegan Winslow 8/2012

Range Map