REVISION OF THE LAND SNAIL GENUS ATRACTOPHAEDUSA EHRMANN, 1927 (GASTROPODA: CLAUSILIIDAE)

Đỗ Đức Sáng; Nguyễn Thanh Sơn; Đỗ Hải Lan

doi:10.34238/tnu-jst.6843

REVISION OF THE LAND SNAIL GENUS ATRACTOPHAEDUSA EHRMANN, 1927 (GASTROPODA: CLAUSILIIDAE)

About this article

Received: 01/11/22 Revised: 19/04/23 Published: 28/04/23

Authors

1. Do Duc Sang , VNU - University of Science
2. Nguyen Thanh Son, VNU - University of Science
3. Do Hai Lan, Tay Bac University

Abstract

A revised check-list of the species taxa of the genus Atractophaedusa Ehrmann, 1927 (family Clausiliidae) is presented. The changes of the current system are discussed. This study has resulted in the recognition of seven species. Most species have narrow ranges and are only known from their type localities. All species of genus Atractophaedusa have been recognised as occurring from southern China to northern Vietnam, and are characterized by a thick, quite solid, capsule-shaped to long cylindrical shell, with a pointed or flattened apex; consists of 6-9 whorls, separated by shallow sutures. Color uniformly corneous; aperture semicircular or oval, oblique; double peristome, upper margin thick and protruding, lower margin weak and spaced from upper margin; superior and spiral lamellae fused, but boundary between them visible as a rather abrupt decrease in height.

Keywords

Clausiliidae; Coastal region; Endemic; Taxonomy; Vietnam

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References

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DOI: https://doi.org/10.34238/tnu-jst.6843

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