Caspian Spined Loach Sabanejewia caspia: Well-Known but Practically Unexplored Species of the Cobitidae Family: Peculiarities of Morphology, Karyotype, Distribution, and Postulated Phylogenetic Links

An illustrated description of the features of the external morphology, coloration (taking into account variability), the structure of the cranium, and the karyotype of the Caspian spined loach Sabanejewia caspia are presented. As a result of a comparative analysis based on the study of collections f...

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Bibliographic Details
Published in:Journal of ichthyology 2019-03, Vol.59 (2), p.144-159
Main Authors: Vasil’ieva, E. D., Vasil’ev, V. P.
Format: Article
Language:English
Subjects:
Animal morphology
Biomedical and Life Sciences
Cobitidae
Collections
Coloration
Colour
Comparative analysis
Data collection
Distribution
Freshwater fishes
Haplotypes
Karyotypes
Life Sciences
Morphology
New species
Phylogenetics
Phylogeny
Sabanejewia caspia
Species identification
Zoology
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Summary:An illustrated description of the features of the external morphology, coloration (taking into account variability), the structure of the cranium, and the karyotype of the Caspian spined loach Sabanejewia caspia are presented. As a result of a comparative analysis based on the study of collections for closely related species and literature data, a new species diagnosis of S. caspia was compiled, which allows one to avoid erroneous species identification. Confirmed data on species distribution are presented. The current state of the problem of assessing the phylogenetic relationships of S. caspia and other Sabanejewia species is discussed. Doubts about the correctness of attribution of the AU059338 and AU059339 Genbank haplotypes (widely used in phylogenetics of Cobitidae) to the species S. caucasica are substantiated.
ISSN:0032-9452
1555-6425
DOI:10.1134/S0032945219020206