FB-68044 http://www.fishbase.org/summary/SpeciesSummary.php?id=68044 Animalia Chordata Teleostei Eupercaria/misc Callanthiidae Grammatonotus Grammatonotus brianne Anderson, Greene & Rocha, 2016 Amphilius jacksonii (non Boulenger, 1912) 2016-10-07 2016-10-07 Seegers, L.0 The fishes of the Lake Rukwa drainage. Ann. Mus. R. Afr. Centr., Sci. Zool., 278:1-407. (Ref. 27292) 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) 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) 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) Beolens, B., M. Grayson and M. Watkins0 Eponym dictionary of Fishes. Dunbeath, Caithness (Scotland, UK): Whittles Publishing Limited, 1300 p. (Ref. 128868) FB-DiagnosticDescr-68053 http://purl.org/dc/dcmitype/Text text/html Gert Boden 2016-10-20 00:00:00 2016-10-20 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=68053 Diagnosis: Amphilius lujani is diagnosed from A. pedunculus, A. frieli and A. crassus by having a more slender caudal peduncle, its depth 8.1-9.5% of standard length vs. 9.9-12.3% (Ref. 103388). It is diagnosed from A. jacksonii by having a deeper caudal peduncle, its depth 8.1-9.5% of standard length vs. 4.8-7.9%, and a deeper body, body depth at anus 13.5-15.8% of standard length vs. 9.6-13.2%; it is diagnosed from A. ruziziensis by having a wider interorbital width, 28.3-31.7% of head length vs. 23.4-25.1%, and a deeper body, body depth at anus 13.5-15.8% of standard length vs. 11.1-12.9%; it is further diagnosed from A. frieli by having fewer gill rakers on the first gill arch, 6-8, rarely 5 or 9 vs. 10-11, rarely 9 or 12, and a longer caudal peduncle, its length 16.8-20.9% of standard length vs. 14.4-16.4%; it is further diagnosed from A. crassus by having more branched pectoral-fin rays, 9 vs. 7-8, rarely 9, and a longer caudal peduncle, its length 16.8-20.9% of standard length vs. 13.3-15.5% (Ref. 103388).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 dorsal-fin origin, 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 openings 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 V-shaped connection (Ref. 103388). Mouth broad, gently curved, subterminal; lips moderately fleshy, strongly papillate; rictal lobe large and papillate; anterior portion of premaxillary tooth band exposed with mouth closed; premaxillary tooth patches joined, forming crescent shaped band; 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 origin of pectoral fin; inner mandibular barbel originates anterolaterally of outer mandibular barbel, extending to edge of branchiostegal membrane (Ref. 103388). Branchiostegal membrane with 7-8 rays; gill rakers on first epibranchial 2-3; rakers on first ceratobranchial 4-7; total gill rakers on first arch 6-9 (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 pectoral fin; dorsal fin with i,6-7 rays, and fin margin straight; pectoral fin with i,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 of 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, deeply incised posteriorly; caudal fin deeply forked with tips of lobes rounded; fin with i,5,6,i principal rays; anal fin with short base, origin posterior to origin of adipose-fin base, with ii-iii,6-7 rays; anal-fin margin almost straight (Ref. 103388).Colouration: Body variably mottled with dark saddles; first saddle posterior of head, second saddle at 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 faint medial bands; adipose fin dark brown to black, with posterior distal edge cream-coloured; pectoral and pelvic fins positioned horizontally with upper surfaces cream-coloured with darkened fin base and faint medial bands; lower surfaces light yellow; caudal fin cream-coloured with dark markings on upper and lower lobes; caudal colouration asymmetrical, with lower lobe almost completely dark, except for small cream-coloured mark at base of caudal and cream-coloured tip; upper lobe with less dark pigment, with dark blotch covering dorsal edge, but caudal base with large cream-coloured patch and tip cream-coloured (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-68053 http://purl.org/dc/dcmitype/Text text/html Gert Boden 2016-10-20 00:00:00 2016-10-20 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=68053 Dorsal spines (total): 0; Dorsal soft rays (total): 7 - 8; Analspines: 0; Analsoft rays: 8 - 10 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-68053 http://purl.org/dc/dcmitype/Text text/html Gert Boden 2016-10-20 21:32:19 2025-11-05 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=68053 Africa: Lake Kyoga drainage (Ref. 103388), Lake Victoria drainage (Ref. 52331, 103388) and Lake Manyara basin in Tanzania (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-Size-68053 http://purl.org/dc/dcmitype/Text text/html Gert Boden 2016-10-20 21:13:02 2024-03-06 00:00:00 Max. size http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=68053 12.0 cm SL (male/unsexed; (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-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-68053 http://purl.org/dc/dcmitype/Text text/html Gert Boden 2016-10-20 21:13:02 2024-03-06 00:00:00 Environment http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=68053 demersal; freshwater