FB-69108 http://www.fishbase.org/summary/SpeciesSummary.php?id=69108 Animalia Chordata Teleostei Characiformes Distichodontidae Distichodus Distichodus polli Abwe, Snoeks, Chocha Manda & Vreven, 2019 2020-06-16 2024-01-22 Moelants, T., J. Snoeks and E. Vreven0 Distichodus kasaiensis and D. ingae, two new distichodontid species (Characiformes: Distichodontidae) from the Congo basin. Ichthyol. Explor. Freshwat. 28(2):177-192. (Ref. 122092) FB-DiagnosticDescr-69117 http://purl.org/dc/dcmitype/Text text/html Gert Boden 2020-06-19 00:00:00 2020-06-23 21:28:21 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=69117 Diagnosis: Distichodus kasaiensis is distinguished from D. affinis, D. altus, D. decemmaculatus, D. noboli, D. notospilus and D. teugelsi by the higher number of lateral line scales, 57-65 vs. 37-46; from D. antonii by the inferior mouth vs. terminal, the higher number of dorsal-fin rays, 27-29 vs. 21-25, and the lower number of dark vertical bars, 6-8 vs. 9-14; from D. fasciolatus by the higher number of dorsal-fin rays, 27-29 vs. 24-26, and the lower number of dark vertical bars, 6-8 vs. 13-20; from D. langi by the lower number of lateral line scales, 57-65 vs. 68-70, and the lower number of vertical bars, 6-8 vs. 13; from D. lusosso by the inferior mouth vs. terminal, and the short snout vs. elongated; from D. maculatus by the absence of dark blotches all over the body; and from D. sexfasciatus by the higher number of dorsal-fin rays, 27-29 vs. 24-25, the higher number of teeth in the outer row of the upper and lower jaw, 15-25 and 16-26 vs. 12-14 on both jaws, and the greenish body colouration vs. orange-reddish (Ref. 122092). It is distinguished from its most similar species D. atroventralis by having more dorsal-fin rays, 27-29 vs. 22-24, fewer teeth on the upper jaw, 15-25 vs. 18-36 (overlap due to positive allometry), and a longer dorsal-fin base, 24.9-33.7% of standard length vs. 20.1-28.8% (overlap due to positive allometry); and from D. ingae by having fewer lateral line scales, 57-65 vs. 69-73, more dorsal-fin rays, 27-29 vs. 26, and a smaller prepectoral distance, 21.4-30.0% of standard length vs. 29.1-30.2% (overlap due to negative allometry) (Ref. 122092).Description: body elongated and laterally compressed; dorsal profile straight from tip of snout to above posterior border of eye, then convex to end of dorsal-fin base, straight between dorsal and adipose fins, and concave between adipose and caudal fins; ventral profile straight from tip of snout to level of posterior eye border, concave afterwards until end of anal-fin base, and convex between latter and caudal fin (Ref. 122092). Mouth inferior (Ref. 122092). Caudal peduncle deeper or equal to its length (Ref. 122092). Dorsal fin with a high number of rays and a straight to slightly convex distal margin; dorsal fin origin well in front of pelvic-fin origin; adipose fin at equal distance from dorsal and caudal fins; only proximal two-thirds of adipose fin scaled; anal fin with a concave distal margin; length of pectoral- and pelvic-fin rays decreasing from last unbranched ray to last branched ray; distal tip of pectoral fin reaching, or almost reaching vertical through dorsal-fin origin; pelvic fin always reaching anterior border of vent, sometimes even beyond; caudal fin forked; lobes generally pointed although sometimes more rounded; upper lobe slightly longer than lower lobe; caudal fin, except for its posteriormost fifth, almost entirely covered with small scales (Ref. 122092).Colouration: In preserved specimens, overall body colour light brown-yellowish with lighter belly; six to eight continuous blackish vertical bars on flanks; whether vertical blackish bars disappear in larger specimens is unknown; distinct black spot in middle of caudal peduncle; dorsal fin with whitish-greyish rays connected with translucent membranes, with scattered small, blackish melanophores of irregular size; proximal two thirds of adipose fin with same colour as body, distal third translucent, often with very thin, blackish distal margin; pelvic fin blackish; pectoral fin whitish at base, more translucent distally; anal fin whitish; caudal fin greyish to light brown (Ref. 122092). In life, overall body colour greyish green, belly yellowish white; pelvic fin dark brownish orange, but not as dark as in preserved specimens; anal fin greyish at its base and somewhat darker distally; caudal fin with three transversal bands with different shades of grey, becoming paler from proximal to distal edge; otherwise, colour pattern similar to that of preserved specimens (Ref. 122092). Moelants, T., J. Snoeks and E. Vreven 2018 Distichodus kasaiensis and D. ingae, two new distichodontid species (Characiformes: Distichodontidae) from the Congo basin. Ichthyol. Explor. Freshwat. 28(2):177-192. (Ref. 122092) FB-Morphology-69117 http://purl.org/dc/dcmitype/Text text/html Gert Boden 2020-06-19 00:00:00 2020-06-23 21:28:21 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=69117 Dorsal spines (total): 0; Dorsal soft rays (total): 27 - 29; Analspines: 0; Analsoft rays: 12 - 13 Moelants, T., J. Snoeks and E. Vreven 2018 Distichodus kasaiensis and D. ingae, two new distichodontid species (Characiformes: Distichodontidae) from the Congo basin. Ichthyol. Explor. Freshwat. 28(2):177-192. (Ref. 122092) FB-Distribution-69117 http://purl.org/dc/dcmitype/Text text/html Gert Boden 2020-06-19 17:17:39 2020-06-19 20:39:09 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=69117 Africa: Kasai River, Congo River basin, in Democratic Republic of the Congo and Angola (Ref. 122092). Moelants, T., J. Snoeks and E. Vreven 2018 Distichodus kasaiensis and D. ingae, two new distichodontid species (Characiformes: Distichodontidae) from the Congo basin. Ichthyol. Explor. Freshwat. 28(2):177-192. (Ref. 122092) FB-Size-69117 http://purl.org/dc/dcmitype/Text text/html Gert Boden 2020-06-19 17:09:03 2024-01-22 00:00:00 Max. size http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=69117 22.6 cm SL (male/unsexed; (Ref. 122092)) Moelants, T., J. Snoeks and E. Vreven 2018 Distichodus kasaiensis and D. ingae, two new distichodontid species (Characiformes: Distichodontidae) from the Congo basin. Ichthyol. Explor. Freshwat. 28(2):177-192. (Ref. 122092) 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-69117 http://purl.org/dc/dcmitype/Text text/html Gert Boden 2020-06-19 17:09:03 2024-01-22 00:00:00 Environment http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=69117 benthopelagic; freshwater