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Type: Article
Published: 2020-09-10
Page range: 319–337
Abstract views: 164
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Rhodeus caspius, a new bitterling from Iran (Teleostei: Cypriniformes: Acheilognathidae)

Ichthyology and Molecular Systematic Research laboratory, Zoology Section, Department of Biology, School of Science, Shiraz University, Shiraz, Iran.
Ichthyology and Molecular Systematic Research laboratory, Zoology Section, Department of Biology, School of Science, Shiraz University, Shiraz, Iran.
Department of Hydrobiology and Ichthyology, Institute of Zoology, School of Natural Sciences and Medicine, Ilia State University, Tbilisi, Georgia.
Department of Fisheries, Faculty of Natural Resources, University of Tehran, Karaj, Iran.
Inland Waters Aquaculture Research Center, Iranian Fisheries Sciences Research Institute, Agricultural Research, Education and Extension Organization, Bandar Anzali, Iran.
Department of Fisheries, Faculty of Natural Resources, University of Guilan, Sowmeh Sara, Guilan, Iran.
Pisces Taxonomy Acheilognathids Caspian Sea Tigris COI barcode region


A new bitterling from the Rhodeus amarus group is described based on morphological and molecular data. Rhodeus caspius sp. nov. from the Caspian Sea, Urmia Lake and the upper Tigris River drainages in Iran, is distinguished from its closest congeners (R. amarus and R. colchicus) by having short post-dorsal distance and caudal peduncle length and long head length. It is also characterized by one fixed diagnostic nucleotide substitutions and a K2P nearest neighbor distance of 1% to R. amarus and R. colchicus in the mtDNA COI barcode region.



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