An integrative approach to resolving taxonomic uncertainty in forms of Triglopsis quadricornis (Teleostei: Cottidae) from Lake Ladoga and Lake Onega

V.G. Sideleva & Z.V. Zhidkov

Abstract. According to the results of a comparative analysis of morphological and molecular genetic data, the marine form of the fourhorn sculpin from the Baltic Sea and the two freshwater forms from Lake Ladoga and Lake Onega belong to the nominative subspecies Triglopsis quadricornis quadricornis (Linnaeus, 1758). The observed differences are at the intraspecific level.

Key words: Baltic Sea, freshwater forms, fourhorn sculpin, morphology, mtDNA, cottoid fish

Zoosystematica Rossica, 2024, 33(2): 293–307 ▪ Published online 5 December 2024

https://doi.org/10.31610/zsr/2024.33.2.293 ▪ Open full article

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