BIOLOGIYA MORYA, 2018, Vol. 44, No. 1, pp. 66-67

Sexual dimorphism in the stone cockscomb Alectrias alectrolophus (Pallas, 1814) (Pisces: Stichaeidae)

© 2018 V. V. Zemnukhov

A.V. Zhirmunsky Institute of Marine Biology, National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, Vladivostok 690041

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Sexual dimorphism in the stone cockscomb Alectrias alectrolophus was studied for the first time. No pronounced differences were found in plastic characters between the females and males of this species; however, there were differences in the structure of the urogenital papilla that allow reliable sex determination.

Key words: stone cockscomb, Alectrias alectrolophus, sexual dimorphism.