Abstract

A new species of cockscombs, Alectrias markevichi sp. nov., is described from 46 individuals from the sublittoral of Peter the Great Bay and Moneron Island (the Sea of Japan), South Kuril Strait, southern Hokkaido, and northeastern Honshu (the northwestern Pacific). A. markevichi sp. nov. differs from all the known species of the genus in the presence of only three pores in the occipital commissure (no pores near crest base and no medial tubule), only four pores in the preopercular canal, only one shortened spine at the end of dorsal fin, and 11–18 preural vertebrae with wide neural processes.

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