Most recent article from Basteria
On the variability of the marine gastropod Manzonia overdiepi van Aartsen, 1983 (Gastropoda: Rissoidae) from the Canary Islands, the Selvagens Islands and the Madeira Archipelago
Authors: Dick F. Hoeksema, Frank SwinnenBasteria, 90 (1): 37-44
Published:
Abstract
It is shown, based on type material and extensive secondary material, that Manzonia overdiepi van Aartsen, 1983, Manzonia madeirensis Moolenbeek & M. J. Faber, 1987, and Manzonia sp. figured by Rolán, Hernández, Swinnen, Gómez & Pérez (2011: 142, figs 43E-F, as Manzonia sp. 1) are conspecific. Manzonia madeirensis is a junior synonym of M. overdiepi. Manzonia overdiepi appears to be a very variable species as for the height, width, slenderness and regarding the number and shape of the axial ribs.