Bullheads (Cottus)

General data
- Main name: Bullheads
Classification
- Family: Cottidae - Cottids
- Order: Scorpaeniformes - Mail-cheeked fishes
- Class: Teleostei - Ray-finned fishes
- Superclass: Osteichthyes - Bony fishes
Description
Cottus is a genus of the sculpin family Cottidae. 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. They are small fish, mostly less than 15 cm (6 in) in length, although a few species can reach twice that size. There are currently 68 recognized species in this genus: Cottus aleuticus C. H. Gilbert, 1896 (Coast Range sculpin) Cottus altaicus Kaschenko, 1899 Cottus amblystomopsis P. Y. Schmidt, 1904 (Sakhalin sculpin) Cottus asper J. Richardson, 1836 (Prickly sculpin) Cottus asperrimus Rutter, 1908 (Rough sculpin) Cottus aturi Freyhof, Kottelat & Nolte, 2005 Cottus baileyi C. R. Robins, 1961 (Black sculpin) Cottus bairdii Girard, 1850 (Mottled sculpin) Cottus beldingii C. H. Eigenmann & R. S. Eigenmann, 1891 (Paiute sculpin) Cottus bendirei T. H. Bean, 1881 (Malheur sculpin) Cottus caeruleomentum Kinziger, Raesly & Neely, 2000 (Blue Ridge sculpin) Cottus carolinae T. N. Gill, 1861 (Banded sculpin) Cottus chattahoochee Neely, J. D. Williams & Mayden, 2007 (Chattahoochee sculpin) Cottus cognatus J. Richardson, 1836 (Slimy sculpin) Cottus confusus R. M. Bailey & C. E. Bond, 1963 (Shorthead sculpin) Cottus czerskii L. S. Berg, 1913 (Cherskii\\\'s sculpin) Cottus duranii Freyhof, Kottelat & Nolte, 2005 Cottus dzungaricus Kottelat, 2006 Cottus echinatus R. M. Bailey & C. E. Bond, 1963 (Utah Lake sculpin) Cottus extensus R. M. Bailey & C. E. Bond, 1963 (Bear Lake sculpin) Cottus girardi C. R. Robins, 1961 (Potomac sculpin) Cottus gobio Linnaeus, 1758 (European bullhead) Cottus gratzianowi Sideleva, Naseka & Zhidkov, 2015 Cottus greenei C. H. Gilbert & Culver, 1898 (Shoshone sculpin) Cottus gulosus Girard, 1854 (Riffle sculpin) Cottus haemusi Marinov & Dikov, 1986 Cottus hangiongensis T. Mori, 1930 Cottus hispaniolensis Băcescu & Băcescu-Mester, 1964 Cottus hubbsi R. M. Bailey & Dimick, 1949 (Columbia sculpin) Cottus hypselurus C. R. Robins & H. W. Robison, 1985 (Ozark sculpin) Cottus immaculatus Kinziger & R. M. Wood, 2010 (Knobfin sculpin) Cottus kanawhae C. R. Robins, 2005 (Kanawha sculpin) Cottus kazika D. S. Jordan & Starks, 1904 (Fourspine sculpin) Cottus klamathensis C. H. Gilbert, 1898 (Marbled sculpin) Cottus kolymensis Sideleva & A. Goto, 2012 Cottus koreanus R. Fujii, Y. Choi & Yabe, 2005 Cottus koshewnikowi Gratzianov, 1907 Cottus kuznetzovi L. S. Berg, 1903 Cottus leiopomus C. H. Gilbert & Evermann, 1894 (Wood River sculpin) Cottus marginatus T. H. Bean, 1881 (Margined sculpin) Cottus metae Freyhof, Kottelat & Nolte, 2005 Cottus microstomus Heckel, 1837 Cottus nasalis L. S. Berg, 1933 (Tubenose sculpin) Cottus nozawae Snyder, 1911 Cottus paulus J. D. Williams, 2000 (Pygmy sculpin) Cottus perifretum Freyhof, Kottelat & Nolte, 2005 Cottus perplexus C. H. Gilbert & Evermann, 1894 (Reticulate sculpin) Cottus petiti Băcescu & Băcescu-Mester, 1964 Cottus pitensis R. M. Bailey & C. E. Bond, 1963 (Pit sculpin) Cottus poecilopus Heckel, 1837 (Alpine bullhead) Cottus pollux Günther, 1873 (Japanese fluvial sculpin) Cottus princeps C. H. Gilbert, 1898 (Klamath Lake sculpin) Cottus reinii Hilgendorf, 1879 Cottus rhenanus Freyhof, Kottelat & Nolte, 2005 Cottus rhotheus R. Smith, 1882 (Torrent sculpin) Cottus ricei E. W. Nelson, 1876 (Spoonhead sculpin) Cottus rondeleti Freyhof, Kottelat & Nolte, 2005 Cottus sabaudicus Sideleva, 2009 Cottus scaturigo Freyhof, Kottelat & Nolte, 2005 Cottus schitsuumsh M. Lemoine, M. K. Young, McKelvey, L. Eby, Pilgrim & M. K. Schwartz, 2014 (Cedar sculpin) Cottus sibiricus Kessler, 1889 (Siberian sculpin) Cottus specus G. L. Adams & Burr, 2013 (Grotto sculpin) Cottus spinulosus Kessler, 1872 (Turkestan sculpin) Cottus szanaga Dybowski, 1869 Cottus tallapoosae Neely, J. D. Williams & Mayden, 2007 (Tallapoosa sculpin) Cottus tenuis Evermann & Meek, 1898 (Slender sculpin) Cottus transsilvaniae Freyhof, Kottelat & Nolte, 2005 Cottus volki Taranetz, 1933