FB-62709 http://www.fishbase.org/summary/SpeciesSummary.php?id=62709 Animalia Chordata Teleostei Gobiiformes Gobiidae Stigmatogobius Stigmatogobius signifer Larson, 2005 Gnomus tube-snouted ghost knifefish 2006-06-27 2006-06-27 de Santana, C.D. and D.C. Taphorn0 Sternarchorhynchus gnomus, a new species of electric knifefish from the lower rio Caroni, Venezuela (Gymnotiformes: Apteronotidae). Ichthyol. Explor. Freshwat. 17(1):1-8. (Ref. 56955) de Santana, C. D. and R.P. Vari0 Electric fishes of the genus Sternarchorhynchus (Teleostei, Ostariophysi, Gymnotiformes); phylogenetic and revisionary studies. Zool. J. Linn. Soc. 159:223-371. (Ref. 84053) Saks, L.0 Estonian Common Names, Rank 2. Personal communication (Ref. 116654) FB-GeneralDescr-62717 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2006-06-29 00:00:00 2010-05-18 00:00:00 Biology http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=62717 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Threats Inhabits channel with clear water (Ref. 56955); visibility of approximately 2 m and the pH ranging from 6.6-7.6 (Ref. 84053). Feeds on insects such as chironomids, ephemeropterans and trichopterans (Ref. 56955). de Santana, C. D. and R.P. Vari 2010 Electric fishes of the genus Sternarchorhynchus (Teleostei, Ostariophysi, Gymnotiformes); phylogenetic and revisionary studies. Zool. J. Linn. Soc. 159:223-371. (Ref. 84053) FB-DiagnosticDescr-62717 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2006-06-29 00:00:00 2006-06-29 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=62717 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Habitat Distinguished from all congeners by the following combination of characters: snout strongly curved; head and mid-dorsum as dark as dorsolateral areas; anal and pectoral fins translucent, without conspicuous distal dark margins; scales present along anterodorsal region of body; 6-7 scales above lateral line at mid-body; 159-177 total anal-fin rays; five branchiostegal rays; greatest body depth 9.3-11.4% of length to end of anal fin; snout to anus 58.4-77.6% of length to end of anal fin; pre-pectoral fin length 34.8-41.0% of HL; snout length 57.6-65.4% of HL; head depth at nape 39.7-44.9% of HL; postocular distance 36.9-41.6% of HL; eye diameter 4.1-7.6% of HL; internarial distance 2.7-7.0% of HL; branchial opening 9.5-12.3% of HL; tail length 10.1-17.4% of length to end of anal fin; tail depth 8.3-13.8% of caudal length (Ref. 56955). de Santana, C.D. and D.C. Taphorn 2006 Sternarchorhynchus gnomus, a new species of electric knifefish from the lower rio Caroni, Venezuela (Gymnotiformes: Apteronotidae). Ichthyol. Explor. Freshwat. 17(1):1-8. (Ref. 56955) FB-Morphology-62717 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2006-06-29 00:00:00 2006-06-29 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=62717 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Distribution Analsoft rays: 159 - 177 de Santana, C.D. and D.C. Taphorn 2006 Sternarchorhynchus gnomus, a new species of electric knifefish from the lower rio Caroni, Venezuela (Gymnotiformes: Apteronotidae). Ichthyol. Explor. Freshwat. 17(1):1-8. (Ref. 56955) FB-Distribution-62717 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2006-06-29 00:00:00 2025-11-05 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=62717 http://rs.tdwg.org/ontology/voc/SPMInfoItems#TrophicStrategy South America: Lower Río Caroni, Venezuela. de Santana, C.D. and D.C. Taphorn 2006 Sternarchorhynchus gnomus, a new species of electric knifefish from the lower rio Caroni, Venezuela (Gymnotiformes: Apteronotidae). Ichthyol. Explor. Freshwat. 17(1):1-8. (Ref. 56955) FB-Size-62717 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2006-06-29 00:00:00 2010-05-18 00:00:00 Max. size http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=62717 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Size 15.2 cm TL (male/unsexed; (Ref. 84053)); 13.35 cm TL (female) de Santana, C. D. and R.P. Vari 2010 Electric fishes of the genus Sternarchorhynchus (Teleostei, Ostariophysi, Gymnotiformes); phylogenetic and revisionary studies. Zool. J. Linn. Soc. 159:223-371. (Ref. 84053) 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#Threats 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-62717 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2006-06-29 00:00:00 2010-05-18 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=62717 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Habitat benthopelagic; freshwater; pH range: 6.6 - 7.6