FB-65952 http://www.fishbase.org/summary/SpeciesSummary.php?id=65952 Animalia Chordata Teleostei Cyprinodontiformes Poeciliidae Poecilia Poecilia sarrafae Bragança & Costa, 2011 Rivulus albae Valdesalici, García Gil & Bressane Nielsen, 2011 Rivulus schuncki Costa & De Luca, 2011 2011-03-01 2024-03-19 Costa, W.J.E.M. and A.C. De Luca0 Rivulus schuncki, a new species of the killifish subgenus Melanorivulus, from eastern Brazilian Amazon (Cyprinodontiformes: Rivulidae). Ichthyol. Explor. Freshwat. 21(4):289-293. (Ref. 86535) Valdesalici, S., J.R.G. Gil and D.T.B. Nielsen0 Rivulus albae, a new species of killifish (Teleostei: Cyprinodontiformes: Rivulidae) from northeastern Brazil. Vertebr. Zool. 61(1):105-108. (Ref. 87324) Costa, W.J.E.M.0 Phylogenetic position and taxonomic status of Anablepsoides, Atlantirivulus, Cynodonichthys, Laimosemion and Melanorivulus (Cyprinodontiformes: Rivulidae). Ichthyol. Explor. Freshwat. 22(3):233-249. (Ref. 89845) Bragança, P.H.N., P.F. Amorim and W.J.E.M. Costa0 Geographic distribution, habitat, colour pattern variability and synonymy of the Amazon killifish Melanorivulus schuncki (Cyprinodontiformes: Rivulidae). Ichthyol. Explor. Freshwat. 23(1):51-55. (Ref. 92137) Beolens, B., M. Grayson and M. Watkins0 Eponym dictionary of Fishes. Dunbeath, Caithness (Scotland, UK): Whittles Publishing Limited, 1300 p. (Ref. 128868) FB-GeneralDescr-65961 http://purl.org/dc/dcmitype/Text text/html Frédéric Busson 2011-03-02 00:52:49 2024-03-19 00:00:00 Biology http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=65961 This species occurs generally near stream banks, in shallow places (5-50 cm) and sites where the water had high transparency. It usually inhabits lentic streams, but sometimes also near the bank of lotic streams, where the environment conditions resemble those of lentic water habitats. It was also found in the shallow parts of the Curiaú lake, a peculiar environment formed only during the rainy season (January to June) when Curiaú River overflows from its main channel. In the areas north of the Amazonas River, the streams were directly exposed to sunlight as they flow over a savanna vegetation region, characterized by the presence of the buriti palm Mauritia flexuosa, and the water was hyaline or slightly yellow; south of the Amazonas River, this species was always found close to the forest border, in lentic black water streams, with high water transparency. Both the northern and southern populations are often sympatric with the poeciliid Fluviphylax palikur, the cichlid Laetacara sp., juveniles of the erythrinid Hoplerythrinus uniteniatus and a great variety of lebiasinid species (Ref. 82137). Costa, W.J.E.M. and A.C. De Luca 2010 Rivulus schuncki, a new species of the killifish subgenus Melanorivulus, from eastern Brazilian Amazon (Cyprinodontiformes: Rivulidae). Ichthyol. Explor. Freshwat. 21(4):289-293. (Ref. 86535) FB-DiagnosticDescr-65961 http://purl.org/dc/dcmitype/Text text/html Frédéric Busson 2011-03-02 00:00:00 2011-06-14 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=65961 Can be diagnosed from all other species of the subgenus Melanorivulus by the following characters: snout pointed in lateral view; 12 rows of scales around the caudal peduncle; bright green bars on the flank and caudal fin in males, flank dark brown with small light gray spots on ventral part in females; pelvic fin without dark gray or black anterior margin in females; and by the absence of red bars or dots arranged in chevron-like pattern on flank (Ref. 86535). Costa, W.J.E.M. and A.C. De Luca 2010 Rivulus schuncki, a new species of the killifish subgenus Melanorivulus, from eastern Brazilian Amazon (Cyprinodontiformes: Rivulidae). Ichthyol. Explor. Freshwat. 21(4):289-293. (Ref. 86535) FB-Morphology-65961 http://purl.org/dc/dcmitype/Text text/html Frédéric Busson 2011-03-02 00:00:00 2011-06-14 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=65961 Dorsal soft rays (total): 8 - 9; Analsoft rays: 11 - 13 Costa, W.J.E.M. and A.C. De Luca 2010 Rivulus schuncki, a new species of the killifish subgenus Melanorivulus, from eastern Brazilian Amazon (Cyprinodontiformes: Rivulidae). Ichthyol. Explor. Freshwat. 21(4):289-293. (Ref. 86535) FB-Distribution-65961 http://purl.org/dc/dcmitype/Text text/html Frédéric Busson 2011-03-02 00:57:08 2025-11-05 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=65961 South America: Anauerapucu River drainage, lower Amazonas River basin in northern Brazil. Costa, W.J.E.M. and A.C. De Luca 2010 Rivulus schuncki, a new species of the killifish subgenus Melanorivulus, from eastern Brazilian Amazon (Cyprinodontiformes: Rivulidae). Ichthyol. Explor. Freshwat. 21(4):289-293. (Ref. 86535) FB-Size-65961 http://purl.org/dc/dcmitype/Text text/html Frédéric Busson 2011-03-02 00:52:49 2024-03-19 00:00:00 Max. size http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=65961 2.4 cm SL (male/unsexed; (Ref. 86535)) Costa, W.J.E.M. and A.C. De Luca 2010 Rivulus schuncki, a new species of the killifish subgenus Melanorivulus, from eastern Brazilian Amazon (Cyprinodontiformes: Rivulidae). Ichthyol. Explor. Freshwat. 21(4):289-293. (Ref. 86535) 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-65961 http://purl.org/dc/dcmitype/Text text/html Frédéric Busson 2011-03-02 00:52:49 2024-03-19 00:00:00 Environment http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=65961 pelagic; freshwater