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Issue: Vol. 5737 No. 3: 24 Dec. 2025
Type: Article
Published: 2025-12-24
DOI: 10.11646/zootaxa.5737.3.5
Page range: 389-400
Abstract views: 79
PDF downloaded: 3

Pagodapalaina, a new sinistral genus of Diplommatinidae from the Malay Peninsula and Sumatra, with description of a new species from Perak, Peninsular Malaysia (Gastropoda: Caenogastropoda: Cyclophoroidea)

Faculty of Science; The University of Melbourne; Parkville VIC 3010; Australia.; Department of Life Sciences; Natural History Museum; London SW7 5BD; UK
Animal Systematics Research Unit; Department of Biology; Faculty of Science; Chulalongkorn University; Bangkok 10330; Thailand.
Department of Life Sciences; Natural History Museum; London SW7 5BD; UK
Mollusca Micro snails new genus new species Southeast Asia systematics taxonomy

Abstract

A new diplommatinid genus, Pagodapalaina Z.-Y. Chen gen. nov., is erected for several sinistral species from the Malay Peninsula and Sumatra originally assigned to Diplommatina Benson, 1849. In addition, a new species of this new genus, Pagodapalaina hortulanica sp. nov., is described from Perak, Peninsular Malaysia. The genus Pagodapalaina gen. nov., is characterised by a sinistral and conical shell with a mostly keeled periphery; the radula consists of a strong central tooth with a large central cusp and smaller lateral cusps; the basal plate of the central tooth bears two small cusps; the lateral and marginal teeth have very short basal parts. An annotated type catalogue of all known species is presented, with illustrations provided for most taxa. Additionally, Diplommatina laemsonensis Boonmachai, Bergey & Nantarat, 2023 and Diplommatina prakaiphetensis Boonmachai, Bergey & Nantarat, 2023 are recognised as synonyms of Pagodapalaina acme (Laidlaw, 1949) comb. nov., and Pagodapalaina sinistra (Tomlin, 1938) comb. nov., respectively.

 

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How to Cite

Chen, Z.-Y., Sutcharit, C. & Ablett, J.D. (2025) Pagodapalaina, a new sinistral genus of Diplommatinidae from the Malay Peninsula and Sumatra, with description of a new species from Perak, Peninsular Malaysia (Gastropoda: Caenogastropoda: Cyclophoroidea). Zootaxa, 5737 (3), 389–400. https://doi.org/10.11646/zootaxa.5737.3.5