Notes on the distribution and status of Tanousia zrmanjae (Brusina, 1866) (Gastropoda: Truncatelloidea: Hydrobiidae)

Luboš Beran, e-mail: lubos.beran@nature.cz

Nature Conservation Agency of the Czech Republic, Regional Office Kokořínsko – Máchův kraj Protected Landscape Area Administration, Česká 149, CZ - 276 01 Mělník, Czech Republic
Abstract

Tanousia zrmanjae is probably the last surviving species of Tanousia; fossil species of the genus are known from interglacial deposits in many countries. During a detailed inventory of the Zrmanja River the occurrence of live specimens of T. zrmanjae was confirmed at only two sites in the middle section of the river while empty shells were found at another 10 sites, also in the middle river section, between the Jankovica Buk waterfalls and the Visoki Buk waterfalls near the confluence of the Zrmanja and Krupa rivers. The recent occurrence is probably limited to a few sites and thus T. zrmanjae should still be regarded as critically endangered.

Key words
Tanousia zrmanjae; endangered species; distribution; habitats
References

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Folia Malacologica (2017) : 0-0
First published on-line: 2017-05-04 00:00:00
https://doi.org/10.12657/folmal.025.006
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