FIGURE 6 in A new species of Cottus from the Onega River drainage, White Sea basin (Actinopterygii: Scorpaeniformes: Cottidae)

FIGURE 6. Radiographs of Cottus gratzianowi sp. nov. (a) with 10+23 vertebrae and Cottus koshewnikowi (b) with 11+23 vertebrae. Arrow shows first caudal vertebra.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 page 426, DOI: 10.11646/zootaxa.3949.3.7, http://zenodo.org/record/24367