FB-9407 http://www.fishbase.org/summary/SpeciesSummary.php?id=9407 Animalia Chordata Teleostei Siluriformes Amphiliidae Amphilius Amphilius jacksonii Boulenger, 1912 Jacksons Kaulquappenwels Marbled mountain catfish Klovni-imuevä Mumi 傑氏平鰭鮠 杰氏平鳍鮠 Amphilius jacksoni Boulenger, 1912 1994-04-16 2024-04-16 Boulenger, G.A.0 Catalogue of the fresh-water fishes of Africa in the British Museum (Natural History). Volume IV. London. 392 p. (Ref. 1880) Skelton, P.H. and G.G. Teugels0 Amphiliidae. p. 54-65. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ISNB, Brussels; MRAC, Tervuren; and ORSTOM, Paris. Vol. 2. (Ref. 3818) Greenwood, P.H.0 The Fishes of Uganda. The Uganda Society, Kampala. 131p. (Ref. 4903) Baensch, H.A. and R. Riehl0 Aquarien Atlas. Band 4. Mergus Verlag GmbH, Verlag für Natur-und Heimtierkunde, Melle, Germany. 864 p. (Ref. 12468) Corbet, P.S.0 The food of non-cichlid fishes in the Lake Victoria basin, with remarks on their evolution and adaptation to lacustrine conditions. Proc. Zool. Soc. Lond. 136:1-101. (Ref. 12526) Anonymous0 Fish registrations within the museum database of the Vertebrate Section of the Royal Museum for Central Africa. MRAC, Tervuren, Belgium. (Ref. 12818) Seegers, L.0 The fishes of the Lake Rukwa drainage. Ann. Mus. R. Afr. Centr., Sci. Zool., 278:1-407. (Ref. 27292) Wu, H.L., K.-T. Shao and C.F. Lai (eds.)0 Latin-Chinese dictionary of fishes names. The Sueichan Press, Taiwan. 1028 p. (Ref. 31517) Anonymous0 Fish collection database of the National Museums of Kenya. National Museums of Kenya, P.O. Box 40658, Nairobi, Kenya. (Ref. 31740) Anonymous0 Fish collection database of the Natural History Museum, London (formerly British Museum of Natural History (BMNH)). Natural History Museum, London (formerly British Museum of Natural History (BMNH)). (Ref. 31982) Mohammed, A.0 Local names of fishes found in East Africa. Raw data prepared by Ali Mohammed. Personal Communication. (Ref. 34269) Anonymous0 The icthyological collection of the Zoological Museum Hamburg (ZMH). Division of Ichthyology and Herpetology, Zoological Museum Hamburg (ZMH). (Ref. 35508) Anonymous0 Fish collection database of the J.L.B. Smith Institute of Ichthyology, Grahamstown, South Africa. J.L.B. Smith Institute of Ichthyology, Grahamstown, South Africa. (Ref. 36670) Anonymous0 Fish collection database of the American Museum of Natural History. American Museum of Natural History, Central Park West , NY 10024-5192, USA. (Ref. 41414) David, L. and M. Poll0 Contribution à la faune ichthyologique du Congo Belge: collections du Dr. H. Schouteden (1924-1926) et d'autres récolteurs. Ann. Mus. Congo Belge, Zool. (1), 3(5):189-294. (Ref. 41590) De Vos, L., J. Snoeks and D.F.E. Thys van den Audenaerde0 An annotated checklist of the fishes of Rwanda (east central Africa), with historical data on introductions of commercially important species. J. E. Afr. Nat. Hist. 90:41-68. (Ref. 46152) Varjo, M., L. Koli and H. Dahlström0 Kalannimiluettelo (versio 10/03). Suomen Biologian Seura Vanamo Ry. (Ref. 51086) Walsh, S.J., L.J. Chapman, A.E. Rosenberger and C.A. Chapman0 Redescription of <i>Amphilius jacksonii</i> (Siluriformes: Amphiliidae) with habitat and life-history notes. Ichthyol. Explor. Freshwat. 11(2):163-174. (Ref. 51677) Seegers, L., L. De Vos and D.O. Okeyo0 Annotated checklist of the freshwater fishes of Kenya (excluding the lacustrine haplochromines from Lake Victoria). J. E. Afr. Nat. Hist. 92:11-47. (Ref. 52331) De Vos, L., L. Seegers, L. Taverne and D.F.E. Thys van den Audenaerde0 L'ichtyofaune du bassin de la Malagarasi (système du lac Tanganyika): une synthèse de la connaissance actuelle. Ann. Mus. R. Afr. Centr., Sci. Zool., 285:117-135. (Ref. 54847) Chinese Academy of Fishery Sciences0 Chinese aquatic germplasm resources database. http://zzzy.fishinfo.cn (Ref. 58108) Seegers, L.0 The catfishes of Africa: A handbook for identification and maintenance. Aqualog Verlag A.C.S. GmbH, Germany. 604 p. (Ref. 78218) Nyingi, W.D.0 Guide to common freshwater fishes of Kenya. Moran Publishers, Nairobi, Kenya. 136 p. (Ref. 97924) Banyankimbona, G., E. Vreven, G. Ntakimazi and J. Snoeks0 The riverine fishes of Burundi (East Central Africa): an annotated checklist. Ichthyol. Explor. Freshwat. 23(3):273-288. (Ref. 98755) Thomson, A.W., L.M. Page and S.A. Hilber0 Revision of the <i>Amphilius jacksonii</i> complex (Siluriformes: Amphiliidae), with the descriptions of five new species. Zootaxa 3986(1):61-87. (Ref. 103388) Boulenger, G.A.0 Descriptions of two new fishes from the Nile system. Ann. Mag. Nat. Hist. (Ser. 8) 10:601-602. (Ref. 104653) Okeyo, D.O. and W.O. Ojwang (Comp.)0 A photographic guide to freshwater fishes of Kenya. SeriouslyFish.com (LINK). Electronic version accessed [29/05/2017] (Ref. 115164) Beolens, B., M. Grayson and M. Watkins0 Eponym dictionary of Fishes. Dunbeath, Caithness (Scotland, UK): Whittles Publishing Limited, 1300 p. (Ref. 128868) FB-GeneralDescr-9407 http://purl.org/dc/dcmitype/Text text/html Pascualita Sa-a 1994-04-16 00:00:00 2024-04-16 00:00:00 Biology http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=9407 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Habitat Rheophilic species; occurs in rivers and streams with moderate current and gradient (Ref. 51677). Mostly associated with upper drainages of rivers; in clear and well-oxygenated water (Ref. 27292). Generally associated with large rocks or mixed cobble and rock substrates (Ref. 51677). Carnivorous, feeds predominantly on benthic aquatic insects (Ref. 51677); insect larvae, worms and other invertebrates are taken (Ref. 27292). Iteroparous, with asynchronous ovarian development (Ref. 51677). Seegers, L. 1996 The fishes of the Lake Rukwa drainage. Ann. Mus. R. Afr. Centr., Sci. Zool., 278:1-407. (Ref. 27292) FB-DiagnosticDescr-9407 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2006-01-27 00:00:00 2016-10-13 22:13:45 http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=9407 http://rs.tdwg.org/ontology/voc/SPMInfoItems#DiagnosticDescription Diagnosis: Amphilius jacksonii is diagnosed from all other species of the Amphilius jacksonii complex by its more slender caudal peduncle, 4.8-7.9% of standard length vs. 8.1-12.3% (Ref. 103388). It is further distinguished from A. pedunculus, A. frieli, and A. crassus by its longer caudal peduncle, caudal-peduncle length 16.7-20.6% of standard length vs. 13.3-18.8%; and from A. frieli, A. crassus, and A. lujani by its more slender body, body depth at anus 9.6-13.2% of standard length vs. 13.5-17.4% (Ref. 103388). It is further distinguished from A. frieli by having fewer total gill rakers on the first gill arch, 6-9, rarely 10 vs. 10-11, rarely 9 or 12; and from A. ruziziensis by having a wider interorbital width, 26.7-32.0% of head length vs. 23.4-25.1% (Ref. 103388). It differs from other east and southern African species of Amphilius, including the wide ranging A. uranoscopus, in having fewer total vertebrae, a mode of 6+7 principal caudal rays, and a crenulated epidermal fold at the base of the caudal fin; the latter character is shared with A. platychir and at least some other west African Amphilius species (Ref. 51677). Amphilius jacksonii is further characterized by the following combination of characters (but not all unique): dorsal and pectoral spines absent; dorsal fin with 7 soft rays; short adipose fin not adnate with caudal fin; pectoral fin with 8-10 soft rays; anal-fin rays 7-10; forked caudal fin with rounded lobes; 31-33 free vertebrae; and variable, heavily mottled pigmentation (Ref. 51677). It is distinguished from other congeners in the Congo [=Zaire] River, except A. angustifrons and A. notatus, by having fewer total free vertebrae, 31-33 vs. 33-40; from A. angustifrons and A. notatus it is distinguished by fewer pectoral rays, 8-11, mode of 10, vs. 8-9, mode of 9; anal-fin rays, mode of 10 vs. 9; and mensural characters (Ref. 51677).Description: Body elongate; ventral profile flattened ventrally to anal-fin base, then tapered dorsally to end of caudal peduncle; dorsal profile rising gently from tip of snout to origin of dorsal fin, then nearly horizontal to end of caudal peduncle; greatest body depth at dorsal-fin origin (Ref. 103388). Caudal peduncle laterally compressed, with crenellated epidermal fold; anus and urogenital opening located at midpoint of adpressed pelvic fin, closer to pelvic-fin insertion than to origin of anal fin (Ref. 103388). Skin smooth; lateral line complete, extending from dorsal edge of opercular cavity to caudal-fin base (Ref. 103388). Head and anterior part of body depressed and broad; head wedge-shaped in lateral view; snout broad, blunt when viewed from above; head becoming wider from tip of snout to pectoral-fin base; branchiostegal membranes moderately joined at isthmus forming a U-shaped connection (Ref. 103388). Mouth broad, gently curved, subterminal; lips moderately fleshy, slightly papillate; rictal lobe large and papillate; anterior portion of premaxillary tooth band exposed with mouth closed; premaxillary tooth patches joined, forming V-shaped band with anterior broad protrusion; premaxillary and dentary teeth short, conical; dentary tooth patches forming U-shaped band, separated medially (Ref. 103388). Three pairs of simple, tapered circumoral barbels; maxillary barbel large, fleshy and flattened with pointed tip; barbel extending posterolaterally from corner of mouth to pectoral-fin base; outer mandibular barbel thin with pointed tip, origin at posterior corner of lower jaw, extending to pectoral-fin origin; inner mandibular barbel originates anterolaterally of outer mandibular barbel, extending to edge of branchiostegal membrane (Ref. 103388). Branchiostegal membrane with 6-9 rays; gill rakers on first epibranchial 1-3; rakers on first ceratobranchial 4-8; total gill rakers on first arch 6-10 (Ref. 103388). Eye small, positioned dorsolaterally approximately midway between tip of snout and posterior margin of operculum; horizontal diameter of eye slightly wider than vertical diameter; eye without free orbit, covered with skin confluent with dorsal surface of head; anterior and posterior nares with prominent tubular rims; nares separate but relatively close to each other; posterior nare located about midway between eye and tip of snout (Ref. 103388). Dorsal-fin origin at point over tip of adpressed pectoral fin; dorsal fin with i,6 rays, margin straight; pectoral fin with i,7-9 rays; unbranched ray greatly thickened; pectoral fin with four or five innermost rays progressively shorter making posterior fin margin rounded; origin of pelvic fin posterior to dorsal-fin insertion; pelvic fin with i,5 rays with first ray unbranched and greatly thickened; pelvic fin with straight posterior margin (Ref. 103388). Adipose-fin base longer than anal-fin base, origin anterior to origin of anal-fin base; fin extending past anal-fin insertion; margin strongly convex with sharply rounded edge, not deeply incised posteriorly; caudal fin deeply forked with tips of lobes rounded; fin with i,5-6,5-6,i principal rays; anal fin with short base, origin posterior to origin of adipose-base, with ii-iv,6-8 rays; anal-fin margin almost straight (Ref. 103388).Colouration: Body variably mottled and with dark saddles; first saddle immediately posterior of head, second saddle under dorsal fin, third saddle between dorsal and adipose fins, fourth saddle under anterior part of adipose fin, and fifth saddle on caudal peduncle; all saddles connected laterally by broad stripe; venter light brown with fourth and fifth saddles meeting those of opposite side (Ref. 103388). Dorsal and anal fins light brown with dark medial band; adipose fin dark brown, cream-coloured distally; pectoral and pelvic fins positioned horizontally with upper surfaces brown and lower surfaces light yellow, each with dark medial band; caudal fin brown with medial cream patch and tips of upper and lower lobes cream; caudal colouration asymmetrical, lower lobe with more pigment than upper lobe (Ref. 103388). Thomson, A.W., L.M. Page and S.A. Hilber 2015 Revision of the <i>Amphilius jacksonii</i> complex (Siluriformes: Amphiliidae), with the descriptions of five new species. Zootaxa 3986(1):61-87. (Ref. 103388) FB-Morphology-9407 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2006-01-27 00:00:00 2016-10-13 22:13:45 http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=9407 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Morphology Dorsal spines (total): 0; Dorsal soft rays (total): 7; Analspines: 0; Analsoft rays: 8 - 11; Vertebrae: 31 - 33 Thomson, A.W., L.M. Page and S.A. Hilber 2015 Revision of the <i>Amphilius jacksonii</i> complex (Siluriformes: Amphiliidae), with the descriptions of five new species. Zootaxa 3986(1):61-87. (Ref. 103388) FB-Distribution-9407 http://purl.org/dc/dcmitype/Text text/html Pascualita Sa-a 1994-04-16 00:00:00 2016-10-21 20:14:23 http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=9407 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Distribution Africa: Lake Edward drainage (Ref. 41590, 103388), Lake George drainage (Ref. 4903, 51677, 103388) and Kagera River drainage, part of Lake Victoria basin (Ref. 103388). Also Rufiji River basin, Rugufu River and Rusizi River (Ref. 46152, 98755). Reports from the upper Congo basin refer to Amphilius frieli (Ref. 103388); those from Lake Victoria drainage in Kenya, Lake Kyoga drainage and Lake Manyara affluents to Amphilius lujani; and those from Lake Rukwa basin and Malagarazi River to Amphilius pedunculus (Ref. 103388). Seegers, L. 2008 The catfishes of Africa: A handbook for identification and maintenance. Aqualog Verlag A.C.S. GmbH, Germany. 604 p. (Ref. 78218) FB-LifeCycle-9407 http://purl.org/dc/dcmitype/Text text/html Susan M. Luna 1994-04-16 00:00:00 2024-04-16 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org//Reproduction/FishReproSummary.php?ID=9407&StockCode=9730 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Uses Iteroparous, with asynchronous ovarian development (Ref. 51677). Walsh, S.J., L.J. Chapman, A.E. Rosenberger and C.A. Chapman 2000 Redescription of <i>Amphilius jacksonii</i> (Siluriformes: Amphiliidae) with habitat and life-history notes. Ichthyol. Explor. Freshwat. 11(2):163-174. (Ref. 51677) FB-TrophicStrategy-9407 http://purl.org/dc/dcmitype/Text text/html Grace Tolentino Pablico 2004-07-22 00:00:00 2004-07-26 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public jacksonii http://rs.tdwg.org/ontology/voc/SPMInfoItems#TrophicStrategy Occurs in flowing, well-oxygenated waters (Ref. 7248) and is generally associated with large rocks or mixed cobble and rock substrates (Ref. 51677). Feeds predominantly on benthic aquatic insects (Ref. 51677). Walsh, S.J., L.J. Chapman, A.E. Rosenberger and C.A. Chapman 2000 Redescription of <i>Amphilius jacksonii</i> (Siluriformes: Amphiliidae) with habitat and life-history notes. Ichthyol. Explor. Freshwat. 11(2):163-174. (Ref. 51677) FB-Size-9407 http://purl.org/dc/dcmitype/Text text/html Pascualita Sa-a 1994-04-16 00:00:00 2024-04-16 00:00:00 Max. size http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=9407 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Size 15.0 cm TL (male/unsexed; (Ref. 27292)) Seegers, L. 1996 The fishes of the Lake Rukwa drainage. Ann. Mus. R. Afr. Centr., Sci. Zool., 278:1-407. (Ref. 27292) 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/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=2 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Threats 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-9407 http://purl.org/dc/dcmitype/Text text/html Pascualita Sa-a 1994-04-16 00:00:00 2024-04-16 00:00:00 Environment http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=9407 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Diseases demersal; freshwater