Abstract

A new species of the genus Devetakia, Devetakia apostoloui n. sp., is described from Vucha River, South Bulgaria. The new species is the first member of the genus and the first species from ancient hydrobiid clade from the region of Western Rhodopes.

Highlights

  • Bulgaria is well known as a hot spot of species diversity of the spring dwelling and stygobiotic snails of the superfamily Hydrobioidea (Georgiev & Hubenov, 2013)

  • The new species was collected in Vucha River (N42.03674° E024.46834°, 250 m)

  • The new species is most similar to D. pandurskii by its external view and size but its shell is with lower whorl number (4.5 in D. pandurskii)

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Summary

Introduction

Bulgaria is well known as a hot spot of species diversity of the spring dwelling and stygobiotic snails of the superfamily Hydrobioidea (Georgiev & Hubenov, 2013). Even the hydrobiid fauna of Bulgaria is relatively well known there are and some still uninvestigated water caves and karstic springs which can hold some new species to science. Till the only stygobiotic species known from the Rhodopes Mts were these from the genus Bythinella which are “young species” of Pleistocene origin (Osikowski et al, 2015).

Results
Conclusion

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