Vol. 77 2025

ARTICLES

Pseudorientalia karahanensis sp. n., a new species of the genus Pseudorientalia Radoman, 1983 from Türkiye (Caenogastropoda: Truncatelloidea: Hydrobiidae)

Mustafa Emre Gürlek*

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*Mehmet Akif Ersoy University, Burdur Vocational School of Food Agriculture and Livestock, 15100 Burdur, Türkiye; E-mail: malacoturk@gmail.com; ORCID ID: https://orcid.org/0000-0002-9249-1331

https://doi.org/10.71424/azb77.4.002884

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Abstract

The genus Pseudorientalia Radoman, 1983 is a little-known taxon of the family Hydrobiidae and until now has been represented worldwide by four species, all reported from Türkiye. In this study, Pseudorientalia karahanensis sp. n. described from Aksaray Province in Central Anatolia. Specimens were collected from submerged stones in a spring and preserved in ethanol. Comparative analyses were conducted with the topotypes of P. natolica Küster, 1853 the type material of P. ceriti Gürlek, 2017 and the original descriptions of P. intranodosa Schütt & Şeşen, 1993 and P. kanari D. A. Odabaşı, 2024. The new species is characterized by its ovate-conic shell with deep sutures and a cylindrical penis that differs from congeners in both shape and pigmentation. With this addition, the number of Pseudorientalia species known from Türkiye increases to five. This finding reveals the diversity of the genus in Central Anatolia and provides important information on its taxonomy, morphology and distribution.

Key words

New species, Central Anatolia, Pseudorientalia karahanensis sp. n.

How to Cite
Gürlek M. E. 2025. Pseudorientalia karahanensis sp. n., a new species of the genus Pseudorientalia Radoman, 1983 from Türkiye (Caenogastropoda: Truncatelloidea: Hydrobiidae). Acta zoologica bulgarica 77 (4): 431-434.

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