Cottiusculus is a genus of marine ray-finned fishes belonging to the family Cottidae, the typical sculpins. The fishes in this genus are found in the northwestern Pacific Ocean.
Species There are currently four recognized species in this genus: Cottiusculus gonez Jordan & Starks, 1904 Cottiusculus nihonkaiensis Kai & Nakabo, 2009 Cottiusculus primoricus Prokofiev, 2020 Cottiusculus schmidti Jordan & Starks, 1904
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