Revision of the carnivorous land snail family Streptaxidae (Stylommatophora, Achatinina) in Myanmar, with description of four new species

By

Sian Man, Nem
Siriboon, Thanit
Lin, Aung
Čhirasak Sutčharit
Somsak Panhā‏

Type

Article

Date of Publication

2022

Original Publication

ZooKeys

Volume

1110

Pages

39--102

Subjects

Biodiversity , endemic , Fauna &amp , Flora international , genitalia , Limestone , systematics , taxonomy

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers

Identifiers

DOI: https://doi.org/10.3897/zookeys.1110.85399

 

Abstract

The carnivorous terrestrial snail family Streptaxidae, recognized by having a regular to eccentric shell with complex apertural dentition, remains little-known and largely unexplored in Myanmar. This article presents historically recorded species and provides new data on this family. A total of eighteen species in five genera, namelyCarinartemis,Discartemon,Haploptychius,Oophana, andPerrottetiafrom the southeastern and eastern parts of Myanmar, is examined herein. Among these,Haploptychiusis the most diverse with eight species, while the remaining genera are comprised of fewer than five species each.Streptaxis birmanicaandStreptaxis blanfordianusare herein synonymized withHaploptychius blanfordi, whileStreptaxis hanleyanusis synonymized withCarinartemis sankeyi. Furthermore, the first genitalia and radula descriptions for three previously known species,D. tonywhitteni,C. exacutus, andC. sankeyi, are provided. Using comparative morphological and anatomical approaches, four new species are described:D. paurodeviatussp. nov.,H. heliakosussp. nov.,H. tenasserimicussp. nov., andH. karenorumsp. nov.This present study enhances the understanding of the land snail fauna in Myanmar, specifically the streptaxids, and highlights that limestone areas are important for biodiversity conservation.