FB-65588 http://www.fishbase.org/summary/SpeciesSummary.php?id=65588 Animalia Chordata Holocephali Chimaeriformes Chimaeridae Chimaera Chimaera bahamaensis Kemper, Ebert, Didier & Compagno, 2010 Lippuim-väikesalmler 2010-07-02 2010-07-12 Moritz, T.0 <i>Nannocharax signifer</i>, a new species of fish (Characiformes: Distichodontidae) from the Ouémé River basin, Benin. Ichthyol. Explor. Freshwat. 20(4):289-294. (Ref. 85591) eElurikkus0 eElurikkus koondab ühte portaali Eesti eluslooduse andmed. http://elurikkus.ut.ee/ (Ref. 105471) FB-GeneralDescr-65597 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2010-07-09 00:00:00 2024-03-20 00:00:00 Biology http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=65597 Found in a narrow forest stream with dense vegetation on its banks and with bottom substrate of mud, sand, leaves, roots and drift wood; also found in larger streams with only spare vegetation in the form of small bushes and solitary trees and with bottom substrate consisting mainly of sand and gravel (Ref. 85591). Moritz, T. 2009 <i>Nannocharax signifer</i>, a new species of fish (Characiformes: Distichodontidae) from the Ouémé River basin, Benin. Ichthyol. Explor. Freshwat. 20(4):289-294. (Ref. 85591) FB-DiagnosticDescr-65597 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2010-07-09 00:00:00 2017-04-04 18:01:02 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=65597 Diagnosis: Nannocharax signifer is distinguished from all other Nannocharax species in West Africa by the red-orange colouration of the anterior part of its dorsal fin (Ref. 85591). The combination of the following characters is also diagnostic: no continuous black band along the flank; multiple x-shaped body colour pattern extending on the lower half of the flank; 46-48 lateral line scales; and 4-5 scales between anus and origin of anal fin (Ref. 85591).Description: Body shape typical for Nannocharax: elongated with a slender body, oval in cross section, only slightly laterally compressed; body depth greatest directly in front of dorsal fin (Ref. 85591). Head pointed, mouth small and subterminal; eye slightly closer to tip of snout than to end of head; eye diameter about one third of head length (Ref. 85591). Body completely covered with ctenoid scales; lateral line complete, straight along body, with 46 to 48, usually 47 scales; 4.5 scale rows between lateral line and origin of dorsal fin and 4.5 scale rows between lateral line and origin of pelvic fin; 14 scale rows around caudal peduncle (Ref. 85591). Dorsal fin at about middle of body, with 3-4 simple rays of which 1-2 are supernumerary; dorsal-fin origin at vertical through pelvic-fin origin or slightly behind; caudal fin deeply bifurcate with equal lobes; 9 dorsal procurrent rays, 10 upper principal rays, 9 lower principal rays and 8 ventral procurrent rays; pectoral fin with 14-16 rays, usually 14; tip of pectoral fin behind origin of pelvic fin; pelvic fins well separated from each other, with 9 rays; anal fin with 10-11 rays, usually 10 (Ref. 85591). Usually 38 vertebrae in total, rarely 39; 19 abdominal and 19 caudal vertebrae (Ref. 85591).Colouration: In alcohol body pale brownish or yellowish, without difference between upper and lower half of the body; prominent pattern on body: 8-9 dark brown saddle-like blotches along mid-dorsal line; blotches usually reaching 2-3 scale rows down flank; first four blotches scarcely vary among the specimens: first saddle-like blotch close to head, second ending at dorsal-fin origin, third at middle of dorsal fin and fourth starting behind dorsal-fin base; along horizontal septum 6-7 black slightly rectangular blotches; additionally irregular pattern of X-shaped marks along flank, mainly concentrated on lateral line scale row and two rows below; lower part of head white, upper part light brown with dark areas in occipital region and on opercle; black stripe from eye to snout; pectoral fin transparent with slight brownish stripe in distal third; pelvic-fin transparent with one brown stripe about in middle; brown marks on anterior part and base of anal-fin not always present; a conspicuous black spot on anterior extremity of anal-fin base commonly present; caudal fin with much pronounced dark-brown blotch at base of lower lobe; additional dark marks at about one-third and two-third of fin length, less pronounced on median rays; adipose fin transparent; dorsal-fin membrane transparent; first rays with 2 to 3 black marks on all rays, appearing as black bands; most distal blotches on anterior rays sometimes much pronounced, probably sex-dependant (Ref. 85591). In life, first rays of dorsal fin conspicuously red or red-orange; belly reflecting white; back and upper half of flanks light brown or olive; pattern identical to preserved specimens (Ref. 85591). Moritz, T. 2009 <i>Nannocharax signifer</i>, a new species of fish (Characiformes: Distichodontidae) from the Ouémé River basin, Benin. Ichthyol. Explor. Freshwat. 20(4):289-294. (Ref. 85591) FB-Morphology-65597 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2010-07-09 00:00:00 2017-04-04 18:01:02 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=65597 Dorsal spines (total): 0; Dorsal soft rays (total): 12 - 14; Analspines: 0; Analsoft rays: 10 - 11; Vertebrae: 38 - 39 Moritz, T. 2009 <i>Nannocharax signifer</i>, a new species of fish (Characiformes: Distichodontidae) from the Ouémé River basin, Benin. Ichthyol. Explor. Freshwat. 20(4):289-294. (Ref. 85591) FB-Distribution-65597 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2010-07-09 00:00:00 2017-04-04 18:04:28 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=65597 Africa: Ouémé River basin in Benin (Ref. 85591). Moritz, T. 2009 <i>Nannocharax signifer</i>, a new species of fish (Characiformes: Distichodontidae) from the Ouémé River basin, Benin. Ichthyol. Explor. Freshwat. 20(4):289-294. (Ref. 85591) FB-Uses-65597 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2010-07-09 00:00:00 2024-03-20 00:00:00 Importance http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=65597 fisheries: of potential interest FB-TrophicStrategy-65597 http://purl.org/dc/dcmitype/Text text/html Gert Boden 2017-04-04 18:07:08 2017-04-04 18:07:08 http://creativecommons.org/licenses/by-nc/3.0/ signifer Found in a narrow forest stream with dense vegetation on its banks and with bottom substrate of mud, sand, leaves, roots and drift wood; also found in larger streams with only spare vegetation in the form of small bushes and solitary trees and with bottom substrate consisting mainly of sand and gravel (Ref. 85591). Moritz, T. 2009 <i>Nannocharax signifer</i>, a new species of fish (Characiformes: Distichodontidae) from the Ouémé River basin, Benin. Ichthyol. Explor. Freshwat. 20(4):289-294. (Ref. 85591) FB-Size-65597 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2010-07-09 00:00:00 2024-03-20 00:00:00 Max. size http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=65597 5.7 cm SL (male/unsexed; (Ref. 85591)) Moritz, T. 2009 <i>Nannocharax signifer</i>, a new species of fish (Characiformes: Distichodontidae) from the Ouémé River basin, Benin. Ichthyol. Explor. Freshwat. 20(4):289-294. (Ref. 85591) 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-65597 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2010-07-09 00:00:00 2024-03-20 00:00:00 Environment http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=65597 pelagic; freshwater; pH range: 7.0 - 7.4