FB-67001 http://www.fishbase.org/summary/SpeciesSummary.php?id=67001 Animalia Chordata Teleostei Osteoglossiformes Mormyridae Petrocephalus Petrocephalus frieli Lavoué, 2012 2013-06-06 2024-03-08 Lundberg, J.G., C. Cox Fernandez, R. Campos-Da-Paz and J.P. Sullivan0 Sternarchella calhamazon n. sp., the Amazon's most abundant species of apteronotid electric fish, with a note on the taxonomic status of Sternarchus capanemae Steindachner, 1868 (Gymnotiformes, Apteronotidae). Proc. Acad. Nat. Sci Phila. 162:157-173. (Ref. 93342) Saks, L.0 Estonian Common Names, Rank 2. Personal communication (Ref. 116654) Evans, K.M., W.G.R. Crampton and J.S. Albert0 Taxonomic revision of the deep channel electric fish genus Sternarchella (Teleostei: Gymnotiformes: Apteronotidae), with descriptions of two new species. Neotrop. Ichthyol. 15(2):1-30. (Ref. 126780) IUCN0 The IUCN Red List of Threatened Species. Version 2022-2. <https://www.iucnredlist.org/>. Downloaded 10 Jan 2023. (Ref. 126983) FB-DiagnosticDescr-67010 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2013-06-24 00:00:00 2022-08-01 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=67010 This species is distinguished from its congeners by the following characters: presence of a flat posterior dorsal surface of the basihyal (vs. ridge); with 12 or fewer teeth on pharyngobranchial (vs. 14); a small body cavity usually with less than 14 pre-caudal vertebrae present (vs. 14); without a crown of thorny projections present at border of parietals and supraoccipital (vs. present in patriciae, orthos) (shared with duccis, orinoco, rex, raptor, schotti, sima); with a deep caudal peduncle, 27-42% HL (vs. 15-21% HL) (Ref. 126780).Description: unique tail shape and the following associated characters: unusually deep caudal peduncle and electric organ; caudal peduncle depth at end of anal fin contained 12-18 times in LEA (length from snout tip to end of anal-fin base), 0.7-2.5 times in its length, and electric organ depth at end of anal fin about equal to or a little greater than snout length; caudal peduncle abruptly tapering before caudal fin; hemal spines above middle third of anal fin elongate, nearly twice longer than adjacent proximal anal-fin radials; two rows of intermuscular bones visible along ventral and ventrolateral sides of posteriorly deepening electric organ; precaudal vertebrae 13-15 including 4 vertebrae of the Weberian complex (Ref. 93342). Evans, K.M., W.G.R. Crampton and J.S. Albert 2017 Taxonomic revision of the deep channel electric fish genus Sternarchella (Teleostei: Gymnotiformes: Apteronotidae), with descriptions of two new species. Neotrop. Ichthyol. 15(2):1-30. (Ref. 126780) FB-Morphology-67010 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2013-06-24 00:00:00 2022-08-01 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=67010 Analsoft rays: 147 - 165; Vertebrae: 77 - 79 Evans, K.M., W.G.R. Crampton and J.S. Albert 2017 Taxonomic revision of the deep channel electric fish genus Sternarchella (Teleostei: Gymnotiformes: Apteronotidae), with descriptions of two new species. Neotrop. Ichthyol. 15(2):1-30. (Ref. 126780) FB-Distribution-67010 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2013-06-23 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=67010 South America: Brazilian and Peruvian Amazon. Widespread and common in large river channels of the Amazon-Solimões mainstem and major tributaries from the Pará and Tocantins to Iquitos, and upstream in rio Negro to at least the confluence of rio Branco, and in the rio Madeira to at least the confluence wit río Beni. Lundberg, J.G., C. Cox Fernandez, R. Campos-Da-Paz and J.P. Sullivan 2013 Sternarchella calhamazon n. sp., the Amazon's most abundant species of apteronotid electric fish, with a note on the taxonomic status of Sternarchus capanemae Steindachner, 1868 (Gymnotiformes, Apteronotidae). Proc. Acad. Nat. Sci Phila. 162:157-173. (Ref. 93342) FB-Size-67010 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2013-06-23 00:00:00 2021-10-22 00:00:00 Max. size http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=67010 18.5 cm TL (male/unsexed; (Ref. 93342)) Lundberg, J.G., C. Cox Fernandez, R. Campos-Da-Paz and J.P. Sullivan 2013 Sternarchella calhamazon n. sp., the Amazon's most abundant species of apteronotid electric fish, with a note on the taxonomic status of Sternarchus capanemae Steindachner, 1868 (Gymnotiformes, Apteronotidae). Proc. Acad. Nat. Sci Phila. 162:157-173. (Ref. 93342) 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-67010 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2013-06-23 00:00:00 2021-10-22 00:00:00 Environment http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=67010 benthopelagic; freshwater