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Issue: Vol. 5666 No. 2: 28 Jul. 2025
Type: Article
Published: 2025-07-28
DOI: 10.11646/zootaxa.5666.2.9
Page range: 287-293
Abstract views: 66
PDF downloaded: 6

Boucardicus must have microtunnels! Reassignment of three species into Acroptychia (Gastropoda: Caenogastropoda: Hainesiidae)

Centre for Agricultural Research; HUN-REN Centre for Agricultural Research; 2462 Martonvásár; Brunszvik u. 2; Hungary; Department of Water Management and Natural Ecosystems; Albert Kázmér Faculty of Agricultural and Food Sciences of Széchenyi István University; Vár 2.; 9200 Mosonmagyaróvár; Hungary
Mollusca Taxonomy systematics shell microtunnels gas-exchange

Abstract

Boucardicus is a Madagascan endemic genus of the family Hainesiidae (subfamily Boucardicinae). The over 200 known species are variable in terms of shell shape, but their common trait is the presence of pre-constriction ribs, under which microtunnels run. Here we report three Boucardicus species without microtunnels, and as a consequence, transfer them to the genus Acroptychia as follows: Acroptychia boulangeri (Fischer-Piette, C.P. Blanc, F. Blanc & Salvat, 1993), Acroptychia (?) culminans (Fischer-Piette, C. P. Blanc, F. Blanc & F. Salvat, 1993) and Acroptychia (?) optio (Fischer-Piette, C. P. Blanc, F. Blanc & F. Salvat, 1993). The variability of the genus Acroptychia is briefly discussed.

 

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How to Cite

Páll-Gergely, B. (2025) Boucardicus must have microtunnels! Reassignment of three species into Acroptychia (Gastropoda: Caenogastropoda: Hainesiidae). Zootaxa, 5666 (2), 287–293. https://doi.org/10.11646/zootaxa.5666.2.9