FB-61824 http://www.fishbase.org/summary/SpeciesSummary.php?id=61824 Animalia Chordata Teleostei Gymnotiformes Sternopygidae Sternopygus Sternopygus obtusirostris Steindachner, 1881 Margay pencil catfish 2004-09-21 2021-10-22 Bockmann, F.A. and I. Sazima0 Trichomycterus maracaya, a new catfish from the upper rio Paraná, southeastern Brazil (Siluriformes: Trichomycteridae), with notes on the T. brasiliensis species-complex. Neotrop. Ichthyol. 2(2):651-74. (Ref. 51380) Saks, L.0 Estonian Common Names, Rank 2. Personal communication (Ref. 116654) FB-GeneralDescr-61830 http://purl.org/dc/dcmitype/Text text/html Ivan Sazima 2004-09-24 00:00:00 2008-08-28 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=61830 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Morphology A rheophilic species which dwells on limonite rocky bottom streamlet with pebbles and sand, and pools with muddy bottom and accumulated plant debris. Crepuscular and nocturnal, it forages on the bottom and picks mostly benthic prey. Feeds on immature aquatic insects (ephemeropterans, trichopterans, and plecopterans) with larger individuals preying on small tadpoles (Ref. 51380). Bockmann, F.A. and I. Sazima 2004 Trichomycterus maracaya, a new catfish from the upper rio Paraná, southeastern Brazil (Siluriformes: Trichomycteridae), with notes on the T. brasiliensis species-complex. Neotrop. Ichthyol. 2(2):651-74. (Ref. 51380) FB-DiagnosticDescr-61830 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2005-08-10 00:00:00 2005-08-10 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=61830 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Distribution Belongs to the Trichomycterus brasiliensis species-complex based on the possession of the following apomorphic characters unique in Trichomycterus: four longitudinal rows of well-defined blotches formed by very dense concentration of dark chromatophores in the deeper layer of skin; and pectoral fin with I+5-6 rays. Members of this putative clade, except T. iheringi, may be further distinguished from other species of Trichomycterusin having the bases of the pelvic fins very close to each other, sometimes in contact. Differs from the remaining species of Trichomycterus (except T. brasiliensis and T. potschi) in retaining the primordial epiphyseal cartilaginous bar separating the anterior and posterior cranial fontanels even in larger individuals. Distinguished further from other species of the T. brasiliensis species-complex and from all congeners in the following putative autapomorphies: row of blotches on lateral surface not forming a lateral stripe in any stage during ontogeny; and superficial layer of pigmentation of juveniles and larger, presumably adult, specimens formed by scattered chromatophores (Ref. 51380).Description: Dorsal-fin rays ii+II+7, rarely iii+III+7. Anal-fin rays ii+II+5, iii+II+5. Pectoral-fin rays I+6, rarely I+7. Pelvic-fin rays I+4 (Ref. 51380). Bockmann, F.A. and I. Sazima 2004 Trichomycterus maracaya, a new catfish from the upper rio Paraná, southeastern Brazil (Siluriformes: Trichomycteridae), with notes on the T. brasiliensis species-complex. Neotrop. Ichthyol. 2(2):651-74. (Ref. 51380) FB-Morphology-61830 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2005-08-10 00:00:00 2005-08-10 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=61830 http://rs.tdwg.org/ontology/voc/SPMInfoItems#TrophicStrategy Vertebrae: 42 Bockmann, F.A. and I. Sazima 2004 Trichomycterus maracaya, a new catfish from the upper rio Paraná, southeastern Brazil (Siluriformes: Trichomycteridae), with notes on the T. brasiliensis species-complex. Neotrop. Ichthyol. 2(2):651-74. (Ref. 51380) FB-Distribution-61830 http://purl.org/dc/dcmitype/Text text/html Ivan Sazima 2004-09-24 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=61830 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Size South America: Rio Pardo drainage, upper Rio Paraná, southeastern Brazil. Bockmann, F.A. and I. Sazima 2004 Trichomycterus maracaya, a new catfish from the upper rio Paraná, southeastern Brazil (Siluriformes: Trichomycteridae), with notes on the T. brasiliensis species-complex. Neotrop. Ichthyol. 2(2):651-74. (Ref. 51380) FB-TrophicStrategy-61830 http://purl.org/dc/dcmitype/Text text/html Ivan Sazima 2004-09-24 00:00:00 2005-07-04 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public maracaya http://rs.tdwg.org/ontology/voc/SPMInfoItems#Threats Dwells on limonite rocky bottom streamlet with pebbles and sand, and pools with muddy bottom and accumulated plant debris. Crepuscular and nocturnal, forages on the bottomand picks mostly benthic prey. Feeds on immature aquatic insects (ephemeropterans, trichopterans, and plecopterans) and larger individuals prey on small tadpoles (Ref. 51380). Bockmann, F.A. and I. Sazima 2004 Trichomycterus maracaya, a new catfish from the upper rio Paraná, southeastern Brazil (Siluriformes: Trichomycteridae), with notes on the T. brasiliensis species-complex. Neotrop. Ichthyol. 2(2):651-74. (Ref. 51380) FB-Size-61830 http://purl.org/dc/dcmitype/Text text/html Ivan Sazima 2004-09-24 00:00:00 2008-08-28 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=61830 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Habitat 5.1 cm SL (male/unsexed; (Ref. 51380)) Bockmann, F.A. and I. Sazima 2004 Trichomycterus maracaya, a new catfish from the upper rio Paraná, southeastern Brazil (Siluriformes: Trichomycteridae), with notes on the T. brasiliensis species-complex. Neotrop. Ichthyol. 2(2):651-74. (Ref. 51380) 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/ FAO General public 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-61830 http://purl.org/dc/dcmitype/Text text/html Ivan Sazima 2004-09-24 00:00:00 2008-08-28 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=61830 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Distribution demersal; freshwater; depth range ? - 1 m (Ref. 51380) Bockmann, F.A. and I. Sazima 2004 Trichomycterus maracaya, a new catfish from the upper rio Paraná, southeastern Brazil (Siluriformes: Trichomycteridae), with notes on the T. brasiliensis species-complex. Neotrop. Ichthyol. 2(2):651-74. (Ref. 51380)