FB-65289 http://www.fishbase.org/summary/SpeciesSummary.php?id=65289 Animalia Chordata Teleostei Synbranchiformes Mastacembelidae Macrognathus Macrognathus obscurus Britz, 2010 Knobfin sculpin 2010-01-25 2011-11-18 Kinziger, A.P. and R.M. Wood0 <i>Cottus immaculatus</i>, a new species of sculpin (Cottidae) from the Ozark Highlands of Arkansas and Missouri, USA. Zootaxa 2340:50-64. (Ref. 83416) FB-GeneralDescr-65300 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2010-01-29 00:00:00 2021-10-04 00:00:00 Biology http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=65300 Found in cool to cold spring-fed creeks and rivers with cobble bottoms (Ref. 83416). Kinziger, A.P. and R.M. Wood 2010 <i>Cottus immaculatus</i>, a new species of sculpin (Cottidae) from the Ozark Highlands of Arkansas and Missouri, USA. Zootaxa 2340:50-64. (Ref. 83416) FB-DiagnosticDescr-65300 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2010-01-29 00:00:00 2010-01-29 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=65300 Distinguished from all other congeners, except Cottus hypselurus and Cottus caeruleomentum, by the blue chin and belly on spawning males. Differs from Cottus hypselurus by dorsal fin spines 8-9 (versus 6-7); pectoral fin rays 16-17 (versus 13-15); pigmentation of the ventral surface of the peritoneum weak (versus moderate to strong ); dorsal-fin union moderate to wide versus slight to moderate. Can be differentiated from Cottus caeruleomentum by caudal base band notched (versus non-notched); dorsal fins moderately to widely connected (versus slightly connected); pectoral fin rays 16-17 (versus 12-15); ventral surface of peritoneum weakly pigmented (versus moderately to strongly pigmented) (Ref. 83416). Kinziger, A.P. and R.M. Wood 2010 <i>Cottus immaculatus</i>, a new species of sculpin (Cottidae) from the Ozark Highlands of Arkansas and Missouri, USA. Zootaxa 2340:50-64. (Ref. 83416) FB-Morphology-65300 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2010-01-29 00:00:00 2010-01-29 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=65300 Dorsal spines (total): 7 - 9; Dorsal soft rays (total): 15 - 19; Analsoft rays: 12 - 14 Kinziger, A.P. and R.M. Wood 2010 <i>Cottus immaculatus</i>, a new species of sculpin (Cottidae) from the Ozark Highlands of Arkansas and Missouri, USA. Zootaxa 2340:50-64. (Ref. 83416) FB-Distribution-65300 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2010-01-29 00:00:00 2019-09-25 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=65300 North America: USA (Current, Eleven Point, Spring and White river systems of the White River drainage in the Ozark Highlands of Missouri and Arkansas). Kinziger, A.P. and R.M. Wood 2010 <i>Cottus immaculatus</i>, a new species of sculpin (Cottidae) from the Ozark Highlands of Arkansas and Missouri, USA. Zootaxa 2340:50-64. (Ref. 83416) FB-Uses-65300 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2010-01-29 00:00:00 2021-10-04 00:00:00 Importance http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=65300 fisheries: of no interest FB-Size-65300 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2010-01-29 00:00:00 2021-10-04 00:00:00 Max. size http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=65300 9.0 cm SL (male/unsexed; (Ref. 83416)) Kinziger, A.P. and R.M. Wood 2010 <i>Cottus immaculatus</i>, a new species of sculpin (Cottidae) from the Ozark Highlands of Arkansas and Missouri, USA. Zootaxa 2340:50-64. (Ref. 83416) FB-Threats-2 http://purl.org/dc/dcmitype/Text text/html Belen Acosta 1990-10-18 00:00:00 2024-03-07 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=2 Least Concern (LC) , IUCN Grouper and Wrasse Specialist Group IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006. FB-Habitat-65300 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2010-01-29 00:00:00 2021-10-04 00:00:00 Environment http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=65300 benthopelagic; freshwater