HomeFish encyclopediaRay-finned fishesPerch-like fishGoatfishesMargaretha's goatfish Margaretha's goatfish (Upeneus margarethae) Scientific name: Upeneus margarethae Uiblein & Heemstra, 2010 The Margaretha's goatfish (Upeneus margarethae) is a marine fish of the family Mullidae. Native range: Indian Ocean, Red Sea to Somalia, Kenya, Mozambique, Madagascar, Persian Gulf, Sri Lanka, NW Australia, N Australia (Arafura Sea). BiologyDorsal spines (total): 8; Dorsal soft rays (total): 9. This species is distinguished by the following characters: D VIII,9; pectoral fins 13-14, usually 14 (in 26 of 29 individuals); gill rakers 4-7 + 16-18 = 21-24; lateral line scales 28-30; body depth at first dorsal fin origin 22-26% SL and at anus 20-24% SL; caudal-peduncle depth 9.3-11% SL; maximum head depth 19-23% SL; head depth through eye 15-19% SL; head length 27-31%SL; orbit length 6.5-9.1% SL; upper jaw length 10-12% SL; barbel length 16-20% SL; caudal-fin length 27-31% SL; anal-fin height 14-18% SL; pelvic-fin length 20-24% SL; pectoral-fin length 21-25% SL; first dorsal-fin height 20-23% SL; second dorsal-fin height 16-20% SL; 8-10 total bars on caudal fin, 4 bars on upper caudal-fin lobe, 3 on lobe itself and 1 at the lobe base; broad red band lower caudal-fin lobe, covering up to 5-6 red bars which are only partly visible along the outer, ventral fin margin in fresh fish, usually not retained on preserved oneSource: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameUpeneus margarethaeFamilyMullidae (Goatfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length11.0Depth range8–50 m (26–164 ft)EnvironmentMarine; reef-associated; depth range 8 - 50 mClimateTropicalDistributionIndian Ocean: Red Sea to Somalia, Kenya, Mozambique, Madagascar, Persian Gulf, Sri Lanka, NW Australia, N Australia (Arafura Sea).Conservation status (IUCN)Not EvaluatedThreat to humansHarmless SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026