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Opeas pyrgula

All five anatomical views of sharp awlsnail, dorsal showing elongated cone shape with tight whirls at top
  • Wikimedia Commons User H. Zell
  • CC BY-NC 3.0 DEED
  • 4f3782f6-8b1d-4947-af0c-cea4a2a431c1

Family: Achatinidae

Common name: Sharp Awlsnail

Discovery: Schmacker and Boettger, 1891

Non-native

Identification

Width: 2.2 mm
Height: 8 mm
Whorls: 7

Opeas pyrgula has a small, elongate shell. The whorls have deep sutures and light radial striations. The outside edge of the aperture curves forward near its insertion, though not as dramatically as in O. pumilum. The animal is a deep yellow color.

Ecology

In North America O. pyrgula is known from developed habitats, such as alleys (Vanatta in Pilsbry, 1946) and parks. It can be locally abundant.

Taxonomy

This species has no known synonyms.

Distribution

This animal is from Asia, introduced along the Gulf and Atlantic Coasts from Texas to Pennsylvania (NatureServe, 2013). In Virginia it has been collected in the Norfolk area.

Conservation

NatureServe Global Rank: G5
NatureServe State Rank: SNA

Author: Ken Hotopp
Publication date: 3/2023

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