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doi:10.11646/zootaxa.3949.3

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2022

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“…The species group "Cottus koshewnikowi" is represented by two species: C. koshewnikowi Gratzianov, 1907and C. gratzianowi Sideleva, Naseka & Zhidkov, 2015(Sideleva et al 2015a, 2015b. This group of species has such morphological features as the presence of bony prickles on the body and a short (incomplete) trunk canal.…”

Section: R E S E a R C H A R T I C L Ementioning

confidence: 99%

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A new species of the genus Cottus (Scorpaeniformes, Cottidae) from the Baltic Sea Basin and its phylogenetic placement

Zhidkov

Kesminas²

2022

EJT

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The genus Cottus contains more than 60 species that are common in freshwater bodies of northern Eurasia and North America. Despite the abundance of species, this genus has been insufficiently studied in Eastern European rivers and lakes. The new taxon Cottus cyclophthalmus sp. nov. was found in the Neman/Nemunas and Venta river systems (Baltic Sea Basin). Cottus cyclophthalmus is sister and most morphologically similar to Cottus gobio. The new species has the following diagnostic characters: round, protruding (tubular) eyes near front of head; dermal papillae on top and sides of head, naked body, absence of bony prickles, full trunk canal with 32–36 pores. The description of Cottus cyclophthalmus and a new finding of Cottus microstomus improved understanding of the Eastern European biodiversity.

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Section: R E S E a R C H A R T I C L Ementioning

confidence: 99%

“…To study morphometric characters, such multivariate statistical methods as principal component analysis (PCA) and discriminant function analysis (DFA) were used. The scheme of measurements (developed by Taliev 1955 andSideleva et al 2015b) included 26 distances. This scheme is designed specifically for cottids.…”

Section: Statistical Analysesmentioning

confidence: 99%

A new species of the genus Cottus (Scorpaeniformes, Cottidae) from the Baltic Sea Basin and its phylogenetic placement

Zhidkov

Kesminas²

2022

EJT

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A new species of the genus Cottus (Scorpaeniformes, Cottidae) from the Baltic Sea Basin and its phylogenetic placement

A new species of the genus Cottus (Scorpaeniformes, Cottidae) from the Baltic Sea Basin and its phylogenetic placement

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