Cottus gratzianowi Sideleva, Naseka & Zhidkov, 2015, sp. nov. ...

• Published in: Art History
• Main Authors: Sideleva, Valentina G., Naseka, Alexander M., Zhidkov, Zakhar V.
• Format: Text
• Language: unknown
• Published: Zenodo 2015
• Subjects: Biodiversity; Taxonomy; Animalia; Chordata; Actinopterygii; Scorpaeniformes; Cottidae; Cottus; Cottus gratzianowi; Onega; Valentina; White Sea
• Online Access: https://dx.doi.org/10.5281/zenodo.5615420; https://zenodo.org/doi/10.5281/zenodo.5615420

Cottus gratzianowi, sp. nov. (Figs 2, 3, 5, 6) Holotype. ZIN 55596, 63 mm SL; Ukhtomitsa River village of Korotetskaya (Vologda Province), 60°18′19″N, 38°40′30″E, Onega River drainage, White Sea basin; coll. A. Naseka & Z. Zhidkov, July 2010. Paratypes. ZIN 55597, 17 specimens, 42–60 mm SL, same data as holotype. Diagnosis. Cottus gratzianowi sp. nov. is diagnosed from all other described members of the genus Cottus in Europe east of the Meuse (except C. koshewnikowi) in having the following combination of character states: no transverse dark bands on the pelvic fin, a single median chin canal pore, an incomplete lateral line not reaching behind the anal-fin insertion, and the position of the lateral line which is located considerably above the mid-line of the flank. Cottus gratzianowi sp. nov. is distinguished from C. koshewnikowi by a larger eye (horizontal diameter 23−28% HL, equal to or exceeding snout length vs. 16−25% HL, less than snout length), a rounded caudal fin (vs. commonly truncated), ... : Published as part of Sideleva, Valentina G., Naseka, Alexander M. & Zhidkov, Zakhar V., 2015, A new species of Cottus from the Onega River drainage, White Sea basin (Actinopterygii: Scorpaeniformes: Cottidae), pp. 419-430 in Zootaxa 3949 (3) on pages 420-430, DOI: 10.11646/zootaxa.3949.3.7, http://zenodo.org/record/243672 ...