FB-68143 http://www.fishbase.org/summary/SpeciesSummary.php?id=68143 Animalia Chordata Teleostei Cyprinodontiformes Rivulidae Rivulus Rivulus berovidesi Silva, 2015 2017-02-17 2024-03-06 Tan, M. and J.W. Armbruster0 Two new species of spotted <i>Hypancistrus</i> from the Rio Negro drainage (Loricariidae, Hypostominae). ZooKeys 552:123-135. (Ref. 114591) Sousa, L. M. de, E.B. de Sousa, R.R. de Oliveira, M.H. Sabaj Pérez, Zuanon. J. and Rapp Py-Daniel. L.0 Two new species of <i>Hypancistrus</i> (Siluriformes: Loricariidae) from the rio Xingu, Amazon, Brazil. Neotropical Ichthyol. 23(1):e240080:1-25. (Ref. 133100) FB-DiagnosticDescr-68152 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2017-02-25 00:00:00 2017-02-25 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=68152 Hypancistrus margaritatus differs from all other species of Hypancistrus by its color pattern consisting of dense, small, light-colored spots on a dark base color (vs. color pattern of light spots on a dark base color in H. inspec¬tor, H. lunaorum, and H. contradens). This species has consistently-sized spots on head and trunk about the size of the nasal aperture (vs. smaller spots on head than trunk in H. inspector, spots usually smaller than half the nasal diameter in H. lunaorum, and spots ranging in size from equal to or larger in diameter of nasal aper¬ture in H. contradens); has more spots, 23 in a lateral, horizontal series from snout tip to base of caudal peduncle 23 in holotype (vs. 8-20 spots in H. contradens; 8-16 in H. lunaorum); and has more densely-packed spots relative to H. lunaorum, with spots on lateral surface of the body having a minimum interspot to spot diameter ratio ranging from 1.0-1.6 (vs. 1.9-4.4 in H. lunaorum) (Ref. 114591).Description: Dorsal fin II,7; anal fin i,4; pectoral fin I,6; pelvic fin i,5 (Ref. 114591) Tan, M. and J.W. Armbruster 2016 Two new species of spotted <i>Hypancistrus</i> from the Rio Negro drainage (Loricariidae, Hypostominae). ZooKeys 552:123-135. (Ref. 114591) FB-Morphology-68152 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2017-02-25 00:00:00 2017-02-25 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=68152 Dorsal spines (total): 2; Dorsal soft rays (total): 7; Analsoft rays: 5 Tan, M. and J.W. Armbruster 2016 Two new species of spotted <i>Hypancistrus</i> from the Rio Negro drainage (Loricariidae, Hypostominae). ZooKeys 552:123-135. (Ref. 114591) FB-Distribution-68152 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2017-02-25 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=68152 South America: Takutu River, a tributary of the Rio Branco, Rio Negro drainage, Amazon basin in Guyana. Tan, M. and J.W. Armbruster 2016 Two new species of spotted <i>Hypancistrus</i> from the Rio Negro drainage (Loricariidae, Hypostominae). ZooKeys 552:123-135. (Ref. 114591) FB-Uses-68152 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2017-02-25 00:00:00 2017-02-25 00:00:00 Importance http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=68152 fisheries: commercial; aquarium: commercial Sousa, L. M. de, E.B. de Sousa, R.R. de Oliveira, M.H. Sabaj Pérez, Zuanon. J. and Rapp Py-Daniel. L. 2025 Two new species of <i>Hypancistrus</i> (Siluriformes: Loricariidae) from the rio Xingu, Amazon, Brazil. Neotropical Ichthyol. 23(1):e240080:1-25. (Ref. 133100) Sousa, L. M. de, E.B. de Sousa, R.R. de Oliveira, M.H. Sabaj Pérez, Zuanon. J. and Rapp Py-Daniel. L. 2025 Two new species of <i>Hypancistrus</i> (Siluriformes: Loricariidae) from the rio Xingu, Amazon, Brazil. Neotropical Ichthyol. 23(1):e240080:1-25. (Ref. 133100) FB-Size-68152 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2017-02-25 00:00:00 2017-02-25 00:00:00 Max. size http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=68152 4.6 cm SL (male/unsexed; (Ref. 114591)) Tan, M. and J.W. Armbruster 2016 Two new species of spotted <i>Hypancistrus</i> from the Rio Negro drainage (Loricariidae, Hypostominae). ZooKeys 552:123-135. (Ref. 114591) 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-68152 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2017-02-25 00:00:00 2017-02-25 00:00:00 Environment http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=68152 demersal; freshwater