Tasserkidrilus cf. americanus (Clitellata, Naididae) – A new record from Slovakia confirms the dissimilarity between the European and North American populations
Open Access
- 18 October 2021
- journal article
- research article
- Published by Pensoft Publishers in Biodiversity Data Journal
- Vol. 9, e72846
- https://doi.org/10.3897/bdj.9.e72846
Abstract
The main objective of this study is to present a new record of Tasserkidrilus cf. americanus found in a channel near the Tešmak swamp in Slovakia (Central Europe) and to compare its morphological features and habitat requirements with those of populations occurring in North America and Europe. The new specimens are similar to those found in The Netherlands and Belgium, but dissimilar to previously reported North American material of T. americanus, reopening the question of whether the European form is a separate species. The European form has the penis sheaths approximately twice as long as and wider than the North American form and may inhabit slow-flowing or standing waters of a eutrophic character, which is in conflict with the current knowledge on the morphology and ecology of North American populations. Further investigation is necessary to solve the questions about the origin and taxonomic relationship of the European population to other populations.Keywords
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