marbled sculpin

The marbled sculpin (Cottus klamathensis) is a species of sculpin found in the Klamath and Pit River drainages in northern California and southern Oregon. Three subspecies have been identified: the upper Klamath marbled sculpin (C.k. klamathensis), which occurs in the Klamath River watershed above Klamath Falls; the lower Klamath marbled sculpin (C.k. polyporus), which occurs in the Klamath River watershed downstream of Iron Gate Dam; and the bigeye marbled sculpin (C.k. macrops), which inhabits the Pit River Watershed. However, genetic analysis performed in 2012 indicated minimal difference between individuals from each of these three regions.