Cottus is a genus of the mainly freshwater ray-finned fishes belonging to the family Cottidae, the typical sculpins. They are often referred to as the "freshwater sculpins", as they are the principal genus of sculpins to be found in fresh water. They are native to the Palearctic and Nearctic.
The European bullhead is a freshwater fish that is widely distributed in Europe, mainly in rivers. It is a member of the family Cottidae, a type of sculpin. It is also known as the miller's thumb, freshwater sculpin, common bullhead, and cob.
The rough sculpin is a species of fish in the family Cottidae. It is endemic to California, the United States. Its habitat includes spring-fed tributaries of the Pit River system in northeastern Shasta County, California, including the Fall River and its major tributary, the Tule River. It grows to 9.6 cm (3.8 in) total length.
The Shoshone sculpin is a species of freshwater ray-finned fish belonging to the family Cottidae, the typical sculpins. It is It is endemic to the United States. It inhabits spring systems in the Thousand Springs formation near Hagerman, south-central Idaho. It reaches a maximum length of 9.0 cm. The specific name honors Charles Wilson Greene who was an instructor in physiology at Stanford University and was on the expedition on which the type was collected from the Thousand Springs on the Snake River, near mouth of Salmon Falls River in Gooding County, Idaho.
The Wood River sculpin is a species of freshwater ray-finned fish belonging to the family Cottidae, the typical sculpins. It is endemic to the Big Wood and Little Wood rivers and their tributaries upstream of Magic Reservoir in Blaine County, Idaho in the United States. Its habitat is similar to other sculpins: small to medium-sized streams that are cool and have swift currents. It is a species of concern because of its restricted distribution.
The pygmy sculpin is a species of ray-finned fish belonging to the family Cottidae, the typical sculpins. It is endemic to Alabama in the United States. It inhabits Coldwater Spring and its associated spring run in the Coosa River and Choccolocco Creek systems.
The Siberian sculpin is a species of freshwater ray-finned fish belonging to the family Cottidae, the typical sculpins.. It is found in Siberian river basins of the Arctic Ocean from the Ob to Yana rivers. It reaches a maximum length of 15.0 cm
The banded sculpin is a freshwater fish dwelling mostly in small to moderate sized streams in areas of swift current. Young and juvenile C. carolinae can mainly be found in pools, riffles, and other shallow habitats while adults tend to prefer deeper waters. C. carolinae primarily eats insects and insect larvae, but their large mouths enable them to eat prey nearly as large as themselves, including other sculpin. To prevent predation, including by other fish, the color and pattern of the sculpin tends to match its environment. Most Cottus carolinae are mottled brown with dark vertical banding and usually reach about three inches in length. They have a broad head which rather quickly narrows into a slim body, giving them the appearance of a tadpole reaching adulthood.
The prickly sculpin is a species of ray-finned fish belonging to the family Cottidae, the typical sculpins. It is native to the river drainages of the Pacific Slope of North America from Seward, Alaska south to the Ventura River of Southern California. It extends east of the Continental Divide in the Peace River of British Columbia. It has also been introduced to several reservoirs in Southern California.
The Potomac sculpin is a freshwater species of sculpin that lives in West Virginia, Maryland, Virginia and Pennsylvania.
The black sculpin is a species of freshawater ray-finned fish belonging to the family Cottidae, the typical sculpins. It is endemic to the United States. Its range includes the extreme upper Clinch and Holston River systems in western Virginia and just into northeastern Tennessee. It reaches a maximum length of 8 cm (3.1 in).
The knobfin sculpin 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. It reaches a maximum length of 9.0 cm. It prefers rocky riffles of headwaters and creeks.
The fourspine sculpin is a species of freshwater ray-finned fish belonging to the family Cottidae, the typical sculpins. It is endemic to Japan. It reaches a maximum length of 30.0 cm (11.8 in).
The marbled sculpin is a species of freshwater ray-finned fish belonging to the family Cottidae, the typical sculpins. It is found in the United States, inhabiting the Klamath River drainage in California and Oregon, and the Pit River system from Fall River to Hat Creek, California. It reaches a maximum length of 9.0 cm. It prefers soft-bottomed runs of clear, cold creeks and small to medium rivers.
Cottus kuznetzovi is a species of freshwater ray-finned fish belonging to the family Cottidae, the typical sculpins. It inhabits the Lena River system in eastern Siberia in Russia. It reaches a maximum length of 9.1 cm.
The reticulate sculpin is a species of freshwater ray-finned fish belonging to the family Cottidae, the typical sculpins. It is found in the United States, inhabiting Pacific Slope drainages from the Snohomish River and Puget Sound in Washington to the Rogue River system in Oregon and California. It reaches a maximum length of 10.0 cm. This sculpin occurs in a variety of habitats, but mainly occurs in the slower sections of coastal headwaters, creeks, and small rivers. It prefers faster water with rubble or gravel substrate, but occurs in pools and along stream edges when other sculpin species are present. Often it occurs in clear cold water in forested areas. Its ideal habitat is cold creeks in old-growth forest, with plenty of riffles and runs. This species is tolerant of variable water temperatures and salinities. Where other sculpin species are common, spawning occurs in slow-flowing areas; where other sculpin species are rare or absent, spawning usually occurs in riffles.
The Pit sculpin is a species of freshwater ray-finned fish belonging to the family Cottidae, the typical sculpins. It is found in the United States, inhabiting the Pit and upper Sacramento River systems in Oregon and California. It reaches a maximum length of 13.0 cm. It prefers rubble and gravel riffles.
The Turkestan sculpin is a species of freshwater ray-finned fish belonging to the family Cottidae, the typical sculpins. It is found in the basin of the upper Syr Darya River. It reaches a maximum length of 10.3 cm
