Redescription of Acmella tersa (Benson, 1853), the type species of Acmella W.T. Blanford, 1869 (Gastropoda: Assimineidae), from Meghalaya, Northeast India

Authors

Nipu Kumar Das, Ashoka Trust for Research in Ecology and the Environment
Barna Páll-Gergely, Plant Protection Institute
Fred Naggs, The Natural History Museum, London
Richard C. Preece, University of Cambridge

Document Type

Article

Publication Title

Molluscan Research

Abstract

The type species of the assimineid genus Acmella W.T. Blanford, 1869 is Cyclostoma tersum Benson, 1853, originally described from ‘Musmai’ [Mawsmai], Meghalaya, Northeast India. No specimens from Benson’s type series can be traced, and contemporary shells collected from the type locality in museum collections are extremely worn. It has therefore been impossible to examine shell microsculpture, an important taxonomic character in the diagnosis of species of Assimineidae, using museum specimens. In order to provide better diagnostic characters for the genus Acmella, we redescribe and illustrate Acmella tersa from newly collected specimens, one of which is designated as the neotype. We also provide a list of all known species attributed to Acmella.

First Page

324

Last Page

331

DOI

10.1080/13235818.2021.1991255

Publication Date

1-1-2021

Recommended Citation

Das, Nipu Kumar; Páll-Gergely, Barna; Naggs, Fred; and Preece, Richard C., "Redescription of Acmella tersa (Benson, 1853), the type species of Acmella W.T. Blanford, 1869 (Gastropoda: Assimineidae), from Meghalaya, Northeast India" (2021). Open Access archive. 3235.
https://impressions.manipal.edu/open-access-archive/3235