A new genus and species of uncertain phylogenetic position within the family Hydrobiidae (Caenogastropoda: Truncatelloidea) discovered in Tunisian springs

The species richness of the aquatic (non-marine) gastropod family Hydrobiidae Stimpson, 1865 reaches its peak in the European region partly because other areas, such as North Africa, remain to be extensively surveyed. Most of the hydrobiid species described in North Africa have been ascribed to the...

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Main Authors: Noureddine KHALLOUFI, Mustapha BÉJAOUI, Diana DELICADO
Format: Article
Language:English
Published: Consortium of European Natural History Museums 2017-06-01
Series:European Journal of Taxonomy
Subjects:
Online Access:http://www.europeanjournaloftaxonomy.eu/index.php/ejt/article/view/453
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author Noureddine KHALLOUFI
Mustapha BÉJAOUI
Diana DELICADO
author_facet Noureddine KHALLOUFI
Mustapha BÉJAOUI
Diana DELICADO
author_sort Noureddine KHALLOUFI
collection DOAJ
description The species richness of the aquatic (non-marine) gastropod family Hydrobiidae Stimpson, 1865 reaches its peak in the European region partly because other areas, such as North Africa, remain to be extensively surveyed. Most of the hydrobiid species described in North Africa have been ascribed to the subfamilies Pseudamnicolinae, Hydrobiinae and the genus Mercuria. Little is known about the presence of other hydrobiid subfamilies. This study examines several specimens of gastropods collected from two springs in Tunisia. Based on a comprehensive literature review and rigorous anatomical and molecular comparisons with known species from North Africa, Europe and Asia Minor of similar morphology, we here describe a new genus, Bullaregia gen. nov., and new species Bullaregia tunisiensis gen. et sp. nov. Although the shell shape of this Tunisian species resembles that of European hydrobiid genera such as Belgrandiella, it differs in other anatomical structures (i.e., penis with a glandular strap-like lobe, and two seminal receptacles, SR1 pedunculate, SR2 sessile and less developed). Using maximum likelihood and Bayesian approaches, phylogenetic relationships inferred from mtCOI sequences point to an independent evolutionary lineage for this new taxon outside Belgrandiella and other known hydrobiid subfamilies.
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spelling doaj.art-f3458c4febc241b0aeddbebf61fe2a2b2022-12-21T17:50:56ZengConsortium of European Natural History MuseumsEuropean Journal of Taxonomy2118-97732017-06-01032810.5852/ejt.2017.328335A new genus and species of uncertain phylogenetic position within the family Hydrobiidae (Caenogastropoda: Truncatelloidea) discovered in Tunisian springsNoureddine KHALLOUFI0Mustapha BÉJAOUI1Diana DELICADO2University of Carthage - Environmental Biomonitoring Laboratory (Group of Hydrobiology), Faculty of Sciences of Bizerte - Zarzouna 7021University of Carthage - Environmental Biomonitoring Laboratory (Group of Hydrobiology), Faculty of Sciences of Bizerte - Zarzouna 7021Justus Liebig University Giessen, Department of Animal Ecology & Systematics, Heinrich-Buff-Ring 26-32 IFZD, 35392 GiessenThe species richness of the aquatic (non-marine) gastropod family Hydrobiidae Stimpson, 1865 reaches its peak in the European region partly because other areas, such as North Africa, remain to be extensively surveyed. Most of the hydrobiid species described in North Africa have been ascribed to the subfamilies Pseudamnicolinae, Hydrobiinae and the genus Mercuria. Little is known about the presence of other hydrobiid subfamilies. This study examines several specimens of gastropods collected from two springs in Tunisia. Based on a comprehensive literature review and rigorous anatomical and molecular comparisons with known species from North Africa, Europe and Asia Minor of similar morphology, we here describe a new genus, Bullaregia gen. nov., and new species Bullaregia tunisiensis gen. et sp. nov. Although the shell shape of this Tunisian species resembles that of European hydrobiid genera such as Belgrandiella, it differs in other anatomical structures (i.e., penis with a glandular strap-like lobe, and two seminal receptacles, SR1 pedunculate, SR2 sessile and less developed). Using maximum likelihood and Bayesian approaches, phylogenetic relationships inferred from mtCOI sequences point to an independent evolutionary lineage for this new taxon outside Belgrandiella and other known hydrobiid subfamilies.http://www.europeanjournaloftaxonomy.eu/index.php/ejt/article/view/453freshwater snailsWestern PalaearcticNorth Africaanatomy, Belgrandiella
spellingShingle Noureddine KHALLOUFI
Mustapha BÉJAOUI
Diana DELICADO
A new genus and species of uncertain phylogenetic position within the family Hydrobiidae (Caenogastropoda: Truncatelloidea) discovered in Tunisian springs
European Journal of Taxonomy
freshwater snails
Western Palaearctic
North Africa
anatomy, Belgrandiella
title A new genus and species of uncertain phylogenetic position within the family Hydrobiidae (Caenogastropoda: Truncatelloidea) discovered in Tunisian springs
title_full A new genus and species of uncertain phylogenetic position within the family Hydrobiidae (Caenogastropoda: Truncatelloidea) discovered in Tunisian springs
title_fullStr A new genus and species of uncertain phylogenetic position within the family Hydrobiidae (Caenogastropoda: Truncatelloidea) discovered in Tunisian springs
title_full_unstemmed A new genus and species of uncertain phylogenetic position within the family Hydrobiidae (Caenogastropoda: Truncatelloidea) discovered in Tunisian springs
title_short A new genus and species of uncertain phylogenetic position within the family Hydrobiidae (Caenogastropoda: Truncatelloidea) discovered in Tunisian springs
title_sort new genus and species of uncertain phylogenetic position within the family hydrobiidae caenogastropoda truncatelloidea discovered in tunisian springs
topic freshwater snails
Western Palaearctic
North Africa
anatomy, Belgrandiella
url http://www.europeanjournaloftaxonomy.eu/index.php/ejt/article/view/453
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