Memoirs of the Queensland Museum – Nature 67

The first record of Wilhelminaia minuscula Preston, 1913 from Australia and the designation of lectotypes for W. mathildae Preston, 1913 and W. minuscula (Gastropoda, Eupulmonata, Microcystidae)

Stanisic, J., Stanisic, L. & Ablett, J.D.

Published: 1 June 2026

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Citation

Stanisic, J., Stanisic, L. & Ablett, J.D. (2026). The first record of Wilhelminaia minuscula Preston, 1913 from Australia and the designation of lectotypes for W. mathildae Preston, 1913 and W. minuscula (Gastropoda, Eupulmonata, Microcystidae). Memoirs of the Queensland Museum – Nature 67: 54–65. https://doi.org/10.17082/ssud2678

Accepted

11 March 2026

Published

1 June 2026

Peer reviewed

Yes

DOI

https://doi.org/10.17082/ssud2678

Keywords

glass-snails, microcystids, new Australian records, lectotype designations

Abstract

Wilhelminaia minuscula Preston, 1913 is recorded from Australia for the first time from locations in north-east Queensland. Lectotypes are designated for W. minuscula and W. mathildae Preston, 1913 from syntype material in the Natural History Museum, London. Shell microsculpture (protoconch and teleoconch) has allowed type material from Indonesia to be associated with Australian material of the two species. The types of the species are illustrated for the first time and additional information on their shell features is presented in revised descriptions of both species. Eastern Australian and Top End locality records for both W. minuscula and W. mathildae are provided that indicate a pattern of natural dispersal, combined with a small number of possible introductions.