FB-63817 http://www.fishbase.org/summary/SpeciesSummary.php?id=63817 Animalia Chordata Elasmobranchii Myliobatiformes Dasyatidae Makararaja Makararaja chindwinensis Roberts, 2007 Rivulus giarettai Costa, 2008 2008-05-02 2019-10-07 Costa, W.J.E.M.0 <i>Rivulus giarettai</i>, a new killifish from the Araguari River drainage, upper Paraná River basin, Brazil (Cyprinodontiformes: Rivulidae). Ichthyol. Explor. Freshwat. 19(1):91-95. (Ref. 75625) Costa, W.J.E.M.0 Phylogenetic position and taxonomic status of <i>Anablepsoides, Atlantirivulus, Cynodonichthys, Laimosemion</i> and <i>Melanorivulus</i> (Cyprinodontiformes: Rivulidae). Ichthyol. Explor. Freshwat. 22(3):233-249. (Ref. 89845) Beolens, B., M. Grayson and M. Watkins0 Eponym dictionary of Fishes. Dunbeath, Caithness (Scotland, UK): Whittles Publishing Limited, 1300 p. (Ref. 128868) FB-GeneralDescr-63828 http://purl.org/dc/dcmitype/Text text/html Frédéric Busson 2008-05-06 14:55:02 2024-03-22 00:00:00 Biology http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=63828 Occurs at the surface, close to amphibious vegetation at stream bank, with clear to slightly turbid water (Ref. 75625). Costa, W.J.E.M. 2008 <i>Rivulus giarettai</i>, a new killifish from the Araguari River drainage, upper Paraná River basin, Brazil (Cyprinodontiformes: Rivulidae). Ichthyol. Explor. Freshwat. 19(1):91-95. (Ref. 75625) FB-DiagnosticDescr-63828 http://purl.org/dc/dcmitype/Text text/html Frédéric Busson 2008-05-06 15:17:49 2008-06-18 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=63828 Rivulus giarettai differs from all other species of the subgenus Melanorivulus by possessing a unique color pattern on flank in males, in which red pigmentation is arranged to form a vermiculate pattern. It is similar to species endemic to the central Brazilianplateau in having ventral process of angulo-articular vestigial, first epibranchial curved, and flank intense greenish blue or greenish golden, to purplish blue above anal-fin base in males; it differs from central Brazilian plateau species by a combination of reduction of black pigmentation on head and humeral region in males, 34-36 scales on the longitudinal series, 30-32 caudal-fin rays, 3-4 vomerine teeth, and caudal fin with bars in both sexes. Costa, W.J.E.M. 2008 <i>Rivulus giarettai</i>, a new killifish from the Araguari River drainage, upper Paraná River basin, Brazil (Cyprinodontiformes: Rivulidae). Ichthyol. Explor. Freshwat. 19(1):91-95. (Ref. 75625) FB-Distribution-63828 http://purl.org/dc/dcmitype/Text text/html Frédéric Busson 2008-05-06 15:15:46 2022-11-28 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=63828 South America: Araguari river drainage, upper rio Paraná basin in Brazil. Costa, W.J.E.M. 2008 <i>Rivulus giarettai</i>, a new killifish from the Araguari River drainage, upper Paraná River basin, Brazil (Cyprinodontiformes: Rivulidae). Ichthyol. Explor. Freshwat. 19(1):91-95. (Ref. 75625) FB-Size-63828 http://purl.org/dc/dcmitype/Text text/html Frédéric Busson 2008-05-06 14:55:02 2024-03-22 00:00:00 Max. size http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=63828 3.2 cm SL (male/unsexed; (Ref. 75625)); 3.72 cm SL (female) Costa, W.J.E.M. 2008 <i>Rivulus giarettai</i>, a new killifish from the Araguari River drainage, upper Paraná River basin, Brazil (Cyprinodontiformes: Rivulidae). Ichthyol. Explor. Freshwat. 19(1):91-95. (Ref. 75625) 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-63828 http://purl.org/dc/dcmitype/Text text/html Frédéric Busson 2008-05-06 14:55:02 2024-03-22 00:00:00 Environment http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=63828 pelagic; freshwater; pH range: 5.2 - 5.9