FB-69805 http://www.fishbase.org/summary/SpeciesSummary.php?id=69805 Animalia Chordata Teleostei Cypriniformes Danionidae Opsarius Opsarius kanaensis Arunkumar & Moyon, 2017 2022-08-04 2024-07-18 Stiassny, M.L.J., E. Alter, R.J.C. Monsembula Iyaba and T.L.D. Liyandja0 Two new Phenacogrammus (Characoidei; Alestidae) from the Ndzaa River (Mfimi-Lukenie basin) of central Africa, Democratic Republic of Congo. Am. Mus. Novit. 3980:1-22. (Ref. 127185) Toledo-Piza, M., E.G. Baena, F.C.P. Dagosta, N.A. Menezes, M., Benine, R.C. Andrade, V.A. Bertaco, J.L.O. Birindelli, G. Boden, P.A. Buckup, P. Camelier, F.R. Carvalho, R.M.C Castro, J. Chuctaya, E. Decru and …0 Checklist of the species of the Order Characiformes (Teleostei: Ostariophysi). Neotrop. Ichthyol. 22(1):1-548. (Ref. 130776) FB-DiagnosticDescr-69814 http://purl.org/dc/dcmitype/Text text/html Gert Boden 2022-08-31 00:00:00 2022-09-01 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=69814 Diagnosis: While no ambiguous morphological autapomorphies have been located to diagnose Phenacogrammus concolor, the species is nonetheless distinguished from all congeners except P. deheyni and P. flexus in the possession of a prominent anterior expansion of the first pleural rib; it is readily differentiated from both in the absence of a dominant pigmentation patterning over the flanks and caudal peduncle; additionally, it differs from P. flexus in a shallower body depth, 24.9% of standard length vs. 27.0%, and in the possession of 7 supraneurals vs. 6 (Ref. 127185).Description: A small-bodied species; body elongate, laterally compressed with greatest body depth, 24.9% of standard length, well in front of dorsal-fin origin, in front of the level of pelvic-fin insertion; dorsal body profile smoothly convex to dorsal fin, slightly less so to caudal-fin base; ventral profile smoothly convex between isthmus and anal-fin base, caudal peduncle longer than deep (Ref. 127185). Head length short, 21.7% of standard length, eye large, bony orbit diameter 44.8% of head length (Ref. 127185). Mouth terminal, lower jaw prominent and slightly prognathous, lower lip thick; premaxilla with two teeth in outer row, each bearing 3 cusps, positioned opposite interspaces between and alternating with 4 inner row teeth bearing 5-6 cusps; four robust, broad-based, outer-row teeth on each dentary, first 3 bearing 5-6 cusps, and 4th greatly reduced in size bearing 3 cusps; two small, conical, symphyseal teeth located immediately behind outer row series on dentary (Ref. 127185). Dorsal-fin rays ii,7-8, fin possitioned midway between snout and caudal-fin base, with origin at, or slightly in front of, pelvic-fin insertion, first two branched rays not elongated; anal fin iii,15-16 rays, no hypertrophy or posterior curvature of anal fin in males; caudal fin forked, with 9 upper and 9 lower principal rays, no median filamentous extension (Ref. 127185). Scales in longitudinal series 26-28 to caudal flexure, 3 or 4 transverse scales between longitudinal series and dorsal-fin origin, 3 transverse scales between longitudinal series and pelvic- fin insertion; pored scales in truncate lateral line 5-7; circumpeduncular scales 10 (Ref. 127185). Vertebral count 31-33; twelve to 13 pleural ribs, first with prominent rounded expansion on anterior face in upper third; seven tubular supraneurals located between interspaces of neural spines of vertebral centra 4-11 (Ref. 127185).Colouration: In preservation, base body colouration greyish brown, darker dorsally and becoming pale yellow on chest and ventrum; an overlay of bluish iridescence covers most of body; snout and dorsum of head dark brownish black, cheek silver with a few scattered melanophores; a large humeral blotch present at midbody, above pectoral fin; other than humeral blotch no prominent pigmentation along flanks or caudal peduncle; dorsal and adipose fin light grey, anal fin dusky distally, pectoral and pelvic fins hyaline with darkly pigmented leading edges; median rays of caudal fin somewhat darker than above and below (Ref. 127185). Colouration and pigmentation shortly postmortem like that in preservation, but more intense (Ref. 127185). Stiassny, M.L.J., E. Alter, R.J.C. Monsembula Iyaba and T.L.D. Liyandja 2021 Two new Phenacogrammus (Characoidei; Alestidae) from the Ndzaa River (Mfimi-Lukenie basin) of central Africa, Democratic Republic of Congo. Am. Mus. Novit. 3980:1-22. (Ref. 127185) FB-Morphology-69814 http://purl.org/dc/dcmitype/Text text/html Gert Boden 2022-08-31 00:00:00 2022-09-01 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=69814 Dorsal spines (total): 0; Dorsal soft rays (total): 9 - 10; Analspines: 0; Analsoft rays: 18 - 19; Vertebrae: 31 - 33 Stiassny, M.L.J., E. Alter, R.J.C. Monsembula Iyaba and T.L.D. Liyandja 2021 Two new Phenacogrammus (Characoidei; Alestidae) from the Ndzaa River (Mfimi-Lukenie basin) of central Africa, Democratic Republic of Congo. Am. Mus. Novit. 3980:1-22. (Ref. 127185) FB-Distribution-69814 http://purl.org/dc/dcmitype/Text text/html Gert Boden 2022-08-31 00:00:00 2022-08-31 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=69814 Africa: Ndzaa River, tributary of Mfimi River, Congo River basin, in Democratic Republic of the Congo (Ref. 127185). Stiassny, M.L.J., E. Alter, R.J.C. Monsembula Iyaba and T.L.D. Liyandja 2021 Two new Phenacogrammus (Characoidei; Alestidae) from the Ndzaa River (Mfimi-Lukenie basin) of central Africa, Democratic Republic of Congo. Am. Mus. Novit. 3980:1-22. (Ref. 127185) FB-Size-69814 http://purl.org/dc/dcmitype/Text text/html Gert Boden 2022-08-31 00:00:00 2022-08-31 00:00:00 Max. size http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=69814 4.4 cm SL (male/unsexed; (Ref. 127185)) Stiassny, M.L.J., E. Alter, R.J.C. Monsembula Iyaba and T.L.D. Liyandja 2021 Two new Phenacogrammus (Characoidei; Alestidae) from the Ndzaa River (Mfimi-Lukenie basin) of central Africa, Democratic Republic of Congo. Am. Mus. Novit. 3980:1-22. (Ref. 127185) 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-69814 http://purl.org/dc/dcmitype/Text text/html Gert Boden 2022-08-31 00:00:00 2022-08-31 00:00:00 Environment http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=69814 benthopelagic; freshwater