FB-63481 http://www.fishbase.org/summary/SpeciesSummary.php?id=63481 Animalia Chordata Teleostei Siluriformes Loricariidae Hypostomus Hypostomus rhantos Armbruster, Tansey & Lujan, 2007 2007-08-22 2024-03-25 Fernández, L. and R.Q. Chuquihuamaní0 A new species of <i>Trichomycterus</i> (Siluriformes: Trichomycteridae) from the Andean Cordillera of Perú, with comments on relationships within the genus. Zootaxa 1545:49-57. (Ref. 58750) Saks, L.0 Estonian Common Names, Rank 2. Personal communication (Ref. 116654) FB-DiagnosticDescr-63489 http://purl.org/dc/dcmitype/Text text/html Frédéric Busson 2007-08-23 20:03:08 2007-08-23 20:03:08 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=63489 Trichomycterus megantoni is readily distinguished from all other members of the subfamily Trichomycterinae from southern South America by having autapomorphic interopercle thickened integument and the presence of foramen frontal-supraoccipital reduced. It is further distinguished from other congeners, with the exception of T. pseudosilvinichthys (Fernández & Vari) and T. yuska (Fernández & Schaefer), by the unique combination of the following features: tip of the pelvic fin when depressed not reaching the anus, premaxillae rectangle, first dorsal fin pterygiophore insertion at or posterior to vertebra 19 to 21,17 or 19 pairs of ribs on each side, and 37 to 40 vertebrae. T. megantoni can be distinguished from T. yuska and T. pseudosilvinichthys by the presence of a supraorbital canal with pore 3, and an outer tooth row with conic teeth (versus absence pore 3 and distally narrowing incisiform teeth Fernández & Schaefer, 2003; Fernández & Vari, 2004). In addition, the new species is distinguished from T. yuska by head muscles that are not hypertrophied and 17 pairs of ribs on each side (versus head and cheek musculature hypertrophied and 18 or 19 ribs Fernández & Schaefer, 2003); from T. pseudosilvinichthys by the first pectoral fin ray prolonged as thin short filament (versus first pectoral fin ray terminating at the margin of the fin Fernández & Vari, 2004). Fernández, L. and R.Q. Chuquihuamaní 2007 A new species of <i>Trichomycterus</i> (Siluriformes: Trichomycteridae) from the Andean Cordillera of Perú, with comments on relationships within the genus. Zootaxa 1545:49-57. (Ref. 58750) FB-Distribution-63489 http://purl.org/dc/dcmitype/Text text/html Frédéric Busson 2007-08-23 19:59:50 2025-11-05 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=63489 Trichomycterus megantoni has been collected at several localities from southeastern Perú atthe Santuario Nacional Machiguenga Megantoni: Quebrada Earoto, elevation 2,100 m, Quebrada Matzonzori, elevation 2,200 m, Quebrada Patiti, elevation 2,200 m, and Quebrada Morro Leguia, km 135, in Paucartambo, Cusco. The region is characterized by torrential hydrological conditions associated with abundant summer rains between January and March and by a dry season between May and November (Ref. 58750). Fernández, L. and R.Q. Chuquihuamaní 2007 A new species of <i>Trichomycterus</i> (Siluriformes: Trichomycteridae) from the Andean Cordillera of Perú, with comments on relationships within the genus. Zootaxa 1545:49-57. (Ref. 58750) FB-TrophicStrategy-63489 http://purl.org/dc/dcmitype/Text text/html Frédéric Busson 2007-08-23 20:05:14 2007-08-23 20:05:14 http://creativecommons.org/licenses/by-nc/3.0/ megantoni Trichomycterus megantoni was collected in mountain rivers and streams that were generally 0.5- 12 m wide and 0.3-1.5 m deep, with clear waters running over sandy, and rock-pebble substrates, at elevations of approximately 1,360-2,200 m. The water temperature ranged between 12-16 °C, and the speeds of the current were moderate during the dry season. The environmental characteristics were similar to those observed for other Trichomycterus species in streams of Chile (Arratia, 1983a) and in streams of northwestern Argentina (Fernandez & Vari, 2002). Fernández, L. and R.Q. Chuquihuamaní 2007 A new species of <i>Trichomycterus</i> (Siluriformes: Trichomycteridae) from the Andean Cordillera of Perú, with comments on relationships within the genus. Zootaxa 1545:49-57. (Ref. 58750) FB-Size-63489 http://purl.org/dc/dcmitype/Text text/html Frédéric Busson 2007-08-23 18:08:54 2024-03-25 00:00:00 Max. size http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=63489 10.1 cm SL (male/unsexed; (Ref. 58750)) Fernández, L. and R.Q. Chuquihuamaní 2007 A new species of <i>Trichomycterus</i> (Siluriformes: Trichomycteridae) from the Andean Cordillera of Perú, with comments on relationships within the genus. Zootaxa 1545:49-57. (Ref. 58750) 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-63489 http://purl.org/dc/dcmitype/Text text/html Frédéric Busson 2007-08-23 18:08:54 2024-03-25 00:00:00 Environment http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=63489 pelagic; freshwater; depth range 0 - 2 m (Ref. 58750) Fernández, L. and R.Q. Chuquihuamaní 2007 A new species of <i>Trichomycterus</i> (Siluriformes: Trichomycteridae) from the Andean Cordillera of Perú, with comments on relationships within the genus. Zootaxa 1545:49-57. (Ref. 58750)