Redescription of Andriashev’s spiny pimpled lumpsucker Eumicrotremus andriashevi and designation of a new subspecies E. andriashevi aculeatus ssp. n. (Cyclopteridae)

Abstract

The redescription of Eumicrotremus andriashevi Perminov, 1936, and designation of the new subspecies Eumicrotremus andriashevi aculeatus Voskoboinikova et Nazarkin ssp. n. (Litke Strait, Bering Sea) have been performed. E. andriashevi aculeatus differs from the nominative subspecies by the presence of larger and higher bone plaques that form the “cheeks” and make the external view of the fish “disheveled” and by the larger body height and smaller snout length, as well as by the shape of the infraorbitals and mesethmoideum.