Knobfin Sculpin

The knobfin sculpin (Cottus immaculatus) is a species of fish in the family Cottidae. It is found in the United States, inhabiting the Current, Eleven Point, Spring and White river systems in the Ozark Highlands of Arkansas and Missouri. An invasive non-native introduced population is present in the Pomperaug River drainage in Connecticut.

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Cottus es un género de peces actinopeterigios de agua dulce,​ distribuidos por ríos de Europa, Asia y América del Norte. ​ Especies Existen 67 especies reconocidas en este género:​ Cottus aleuticus Gilbert, 1896 Cottus altaicus Kaschenko, 1899 Cottus amblystomopsis Schmidt, 1904 Cottus asper Richardson, 1836 Cottus asperrimus Rutter, 1908 Cottus aturi Freyhof, Kottelat y Nolte, 2005 Cottus baileyi Robins, 1961 Cottus bairdii Girard, 1850 Cottus beldingii Eigenmann y Eigenmann, 1891 Cottus bendirei (Bean, 1881) Cottus caeruleomentum Kinziger, Raesly y Neely, 2000 Cottus carolinae (Gill,…