FB-63998 http://www.fishbase.org/summary/SpeciesSummary.php?id=63998 Animalia Chordata Teleostei Tetraodontiformes Tetraodontidae Takifugu Takifugu variomaculatus Li & Kuang, 2002 2008-06-13 2024-07-18 Ferreira, K.M. and F.C.T. Lima0 A new species of <i>Knodus</i> (Characiformes: Characidae) from the Rio Tiquié, upper Rio Negro System, Brazil. Copeia 2006(4):630-639. (Ref. 75965) FB-GeneralDescr-64006 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2008-06-17 00:00:00 2021-09-16 00:00:00 Biology http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=64006 Found only in areas of moderate to strong current and present even in the torrential flow of waterfalls. Juveniles measuring up to 2.4 cm SL occur at sandbars marginal to waterfall pools. Feeds only on Chironomidae larvae based on 3 stomach contents (Ref. 75965). Ferreira, K.M. and F.C.T. Lima 2006 A new species of <i>Knodus</i> (Characiformes: Characidae) from the Rio Tiquié, upper Rio Negro System, Brazil. Copeia 2006(4):630-639. (Ref. 75965) FB-DiagnosticDescr-64006 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2008-06-17 00:00:00 2008-06-17 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=64006 Distinguished from all other species of Knodus by the presence of thickened skin forming folds covering the basal portion of the six anteriormost branched anal-fin rays and its interradial membrane. Differs also uniquely among its congeners by having the six anteriormost branched rays associated with more developed skin considerably thicker than that on the remaining anal-fin rays. Can be differentiated also from all congeners, except Knodus meridae, by the low number of branched anal-fin rays (14-16 vs. more than 17), by the presence of relatively compressed teeth (vs. teeth bulky in remaining Knodus and Bryconamericus species, with the exception of Bryconamericus deuteronoides), and the presence of a broad, silvery-gray midlateral stripe (midlateral stripe in remaining Knodus and Bryconamericus species relatively narrow) (Ref. 75965).Description: Dorsal fin ii,8; Anal fin vii, 14, 15 or 16; Pectoral fin i+10 or 11; Pelvic fin i6i (Ref. 75965). Ferreira, K.M. and F.C.T. Lima 2006 A new species of <i>Knodus</i> (Characiformes: Characidae) from the Rio Tiquié, upper Rio Negro System, Brazil. Copeia 2006(4):630-639. (Ref. 75965) FB-Morphology-64006 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2008-06-17 00:00:00 2008-06-17 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=64006 Dorsal soft rays (total): 10; Analsoft rays: 21 - 23; Vertebrae: 38 Ferreira, K.M. and F.C.T. Lima 2006 A new species of <i>Knodus</i> (Characiformes: Characidae) from the Rio Tiquié, upper Rio Negro System, Brazil. Copeia 2006(4):630-639. (Ref. 75965) FB-Distribution-64006 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2008-06-17 00:00:00 2025-11-05 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=64006 South America: known only from the upper Rio Tiquié basin, upper Rio Negro basin in Brazil. Ferreira, K.M. and F.C.T. Lima 2006 A new species of <i>Knodus</i> (Characiformes: Characidae) from the Rio Tiquié, upper Rio Negro System, Brazil. Copeia 2006(4):630-639. (Ref. 75965) FB-Size-64006 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2008-06-17 00:00:00 2021-09-16 00:00:00 Max. size http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=64006 7.3 cm SL (male/unsexed; (Ref. 75965)) Ferreira, K.M. and F.C.T. Lima 2006 A new species of <i>Knodus</i> (Characiformes: Characidae) from the Rio Tiquié, upper Rio Negro System, Brazil. Copeia 2006(4):630-639. (Ref. 75965) 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-64006 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2008-06-17 00:00:00 2021-09-16 00:00:00 Environment http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=64006 benthopelagic; freshwater