FB-62955 http://www.fishbase.org/summary/SpeciesSummary.php?id=62955 Animalia Chordata Teleostei Cypriniformes Cobitidae Niwaella Niwaella xinjiangensis Chen & Chen, 2005 Tetranematichthys quadrifilis (non Kner, 1858) 2006-11-21 2021-09-21 Vari, R.P. and C. Ferraris Jr.0 The catfish genus <i>Tetranematichthys</i> (Aucheniptridae). Copeia 2006(2):168-180. (Ref. 56964) Beolens, B., M. Grayson and M. Watkins0 Eponym dictionary of Fishes. Dunbeath, Caithness (Scotland, UK): Whittles Publishing Limited, 1300 p. (Ref. 128868) FB-DiagnosticDescr-62963 http://purl.org/dc/dcmitype/Text text/html Estelita Emily Capuli 2006-11-23 00:00:00 2006-11-23 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=62963 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Size Diagnosis: Distinguished from T. quadrifilis in the alignment of the lateral margins of the head in the region from the anterior margin of the orbit to the posterior limit of the opercle (running approximately in parallel from ventral view vs. diverging laterally, respectively); in the body width at the pectoral-fin insertion as a proportion of the head width at the posterior margin of the orbit (0.99-1.10 vs. 1.17-1.25, respectively); in the distance from the tip of the snout to the anal fin origin (0.29-0.32 of SL vs. 0.33-0.36 of SL, respectively); and in the position of the anterior termination of the gill opening (one orbital diameter posterior of the transverse plane running through the posterior margin of the orbit vs. positioned in the transverse plane running through the center of the orbit, respectively) (Ref. 56964). Vari, R.P. and C. Ferraris Jr. 2006 The catfish genus <i>Tetranematichthys</i> (Aucheniptridae). Copeia 2006(2):168-180. (Ref. 56964) FB-Distribution-62963 http://purl.org/dc/dcmitype/Text text/html Estelita Emily Capuli 2006-11-23 00:00:00 2024-01-11 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=62963 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Threats South America: Rio Tocantins, various locations within the Amazon basin, and the southern and southwestern portions of the Rio Orinoco basin. Reports of T. quadrifilis from the Rio Orinoco system are considered herein to refer to T. wallacei, which is the only member of the genus known to occur in this river basin. Vari, R.P. and C. Ferraris Jr. 2006 The catfish genus <i>Tetranematichthys</i> (Aucheniptridae). Copeia 2006(2):168-180. (Ref. 56964) FB-TrophicStrategy-62963 http://purl.org/dc/dcmitype/Text text/html Estelita Emily Capuli 2007-01-12 00:00:00 2007-01-12 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public wallacei http://rs.tdwg.org/ontology/voc/SPMInfoItems#Habitat The holotype (MZUSP 31096) was reported to have been collected in an acidic, slow-flowing, blackwater igarape within the flooded rainforest. Habitat information is lacking for most of the other examined specimens; however, several of the paratype lots (USNM 269994, USNM 269995, USNM 27008) were captured in still rain forest backwaters or in shallow rain forest streams with sandy bottoms and barely perceptible water flow; characterized by blackwaters and numerous submerged logs and branches. Specimens collected in the lower Rio Ucayali basin in northeastern Peru and the region of the Rio japura in Amazonas, Brazil, but not examined in this study, were similarly associated with submerged logs (Ref. 56964). Vari, R.P. and C. Ferraris Jr. 2006 The catfish genus <i>Tetranematichthys</i> (Aucheniptridae). Copeia 2006(2):168-180. (Ref. 56964) FB-Size-62963 http://purl.org/dc/dcmitype/Text text/html Estelita Emily Capuli 2006-11-23 00:00:00 2008-06-17 00:00:00 Max. size http://creativecommons.org/licenses/by-nc/3.0/ FAO General public http://www.fishbase.org/summary/SpeciesSummary.php?id=62963 20.6 cm SL (male/unsexed; (Ref. 56964)) Vari, R.P. and C. Ferraris Jr. 2006 The catfish genus <i>Tetranematichthys</i> (Aucheniptridae). Copeia 2006(2):168-180. (Ref. 56964) 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/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=2 http://rs.tdwg.org/ontology/voc/SPMInfoItems#DiagnosticDescription 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-62963 http://purl.org/dc/dcmitype/Text text/html Estelita Emily Capuli 2006-11-23 00:00:00 2008-06-17 00:00:00 Environment http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=62963 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Morphology demersal; freshwater