FB-68086 http://www.fishbase.org/summary/SpeciesSummary.php?id=68086 Animalia Chordata Teleostei Gobiiformes Gobiidae Trimma Trimma readerae Winterbottom & Hoese, 2015 2016-11-21 2018-05-23 Melo, M.R.S. and O.T. Oyakawa0 A new species of Characidium Reinhardt (Characiformes: Crenuchidae) with a distinctively dimorphic male. Copeia 103(2):281-289. (Ref. 104008) Beolens, B., M. Grayson and M. Watkins0 Eponym dictionary of Fishes. Dunbeath, Caithness (Scotland, UK): Whittles Publishing Limited, 1300 p. (Ref. 128868) FB-GeneralDescr-68095 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2016-12-07 00:00:00 2024-07-18 00:00:00 Biology http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=68095 Found only in a single locality characterized by fast flowing waters with periodic shallow riffles no more than 0.4 m deep alternating with artificial pools more than 2 m deep. Occurs only in the rapids (Ref. 104008). Melo, M.R.S. and O.T. Oyakawa 2015 A new species of Characidium Reinhardt (Characiformes: Crenuchidae) with a distinctively dimorphic male. Copeia 103(2):281-289. (Ref. 104008) FB-DiagnosticDescr-68095 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2016-12-07 00:00:00 2016-12-08 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=68095 Characidium satoi is distinguished externally from its congeners by having area between pelvic fin and origin of anal fin moderate to strongly convex in lateral view (vs. area between the pelvic fin and the anal-fin origin straight); and by color pattern, with females, juveniles, and non-breeding males consisting of irregular and discontinuous bars, forming dorsal blotches separated from ventral part, which is V-shaped, W-shaped, or diamond-shaped, or breeding males having less distinct patterning and an overall darker, more uniform pigmentation. It possesses one putative internal autapomorphy, the anteriormost first anal-fin radials inserted between the fifth and sixth caudal vertebrae. Additional external diagnostic characters useful for its identification include the following: isthmus scaled; lateral line complete, with 34-37 perforated scales; anal-fin origin far posterior from anus, separated by 4 to 7 scales (vs. anal-fin origin close to anus, separated from anus by 2 to 4 scales in all congeners, except in C. hasemani, C. litorale , and C. zebra ); distal tip of anal-fin rays reaching base of ventral caudal-fin ray (vs. not reaching, except in C. bahiense, C. hasemani, C. mirim, and C. zebra, and mature males of C. rachovii); and presence of hooks on the pectoral- and pelvic-fin rays in males (vs. absence, except in C. bahiense, C. bimaculatum, C. lagosantense, C. litorale, C. mirim, C. nupelia, C. stigmosum, C. xanthopterum, and C. xavante) (Ref. 104008).Description: Dorsal-fin rays ii+9; anal-fin rays ii+6; pectoral-fin rays iii+7+i, iii+8+i, iii+8+ii, or iii+9+1; pelvic-fin rays i+7+i (Ref. 104008).. Melo, M.R.S. and O.T. Oyakawa 2015 A new species of Characidium Reinhardt (Characiformes: Crenuchidae) with a distinctively dimorphic male. Copeia 103(2):281-289. (Ref. 104008) FB-Morphology-68095 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2016-12-07 00:00:00 2016-12-08 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=68095 Dorsal soft rays (total): 11; Analsoft rays: 8; Vertebrae: 34 Melo, M.R.S. and O.T. Oyakawa 2015 A new species of Characidium Reinhardt (Characiformes: Crenuchidae) with a distinctively dimorphic male. Copeia 103(2):281-289. (Ref. 104008) FB-Distribution-68095 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2016-12-07 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=68095 South America: Rio São Francisco basin, Brazil. Melo, M.R.S. and O.T. Oyakawa 2015 A new species of Characidium Reinhardt (Characiformes: Crenuchidae) with a distinctively dimorphic male. Copeia 103(2):281-289. (Ref. 104008) FB-Uses-68095 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2016-12-07 00:00:00 2024-07-18 00:00:00 Importance http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=68095 fisheries: of no interest FB-Size-68095 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2016-12-07 00:00:00 2024-07-18 00:00:00 Max. size http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=68095 4.4 cm SL (male/unsexed; (Ref. 104008)) Melo, M.R.S. and O.T. Oyakawa 2015 A new species of Characidium Reinhardt (Characiformes: Crenuchidae) with a distinctively dimorphic male. Copeia 103(2):281-289. (Ref. 104008) 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-68095 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2016-12-07 00:00:00 2024-07-18 00:00:00 Environment http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=68095 benthopelagic; freshwater