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Issue: Vol. 5757 No. 3: 5 Feb. 2026
Type: Article
Published: 2026-02-05
DOI: 10.11646/zootaxa.5757.3.5
Page range: 279-293
Abstract views: 32
PDF downloaded: 3

Morphological and genetic differentiations revealed a new freshwater species of Gammarus from the French Pyrenees

University of Rennes; CNRS; ECOBIO – UMR 6553; F–35000; Rennes; France
CNRS; Station d’Écologie Théorique et Expérimentale du CNRS; UAR–2029; 2 route du CNRS; F–09200 Moulis; France
Crustacea Amphipoda integrative taxonomy Gammarus ariegiensis France

Abstract

This study describes morphologically and molecularly a new species, Gammarus ariegiensis sp. nov. from the Pyrenean Mountains in southern France. The new species is characterized by the lack of calceoli on the second antenna, the presence of long setae on anterior margin of merus and carpus of pereopod 5–7, endopodite of uropod 3 between 0.4 and 0.5 times the exopodite. A full description of the new species and information about its distribution is given in this paper together with molecular data (COI and 28S genes) corroborating the morphological delimitation of the new species.

 

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How to Cite

Piscart, C. & Blanchet, S. (2026) Morphological and genetic differentiations revealed a new freshwater species of Gammarus from the French Pyrenees. Zootaxa, 5757 (3), 279–293. https://doi.org/10.11646/zootaxa.5757.3.5