HomeMarine aquarium fishWrassesTwotone wrasse Twotone wrasse (Halichoeres prosopeion) Scientific name: Halichoeres prosopeion Bleeker, 1853 The Twotone wrasse (Halichoeres prosopeion) is a marine fish of the family Labridae. Native range: Western Pacific, east to Samoa and Tonga. BiologyDorsal spines (total): 9; Dorsal soft rays (total): 12-13; Anal spines: 3; Anal soft rays: 12; Vertebrae: 25. Anterior head and body color of adults in life bluish gray, shading posteriorly to yellowish; scales often with orange-yellow vertical lines; a dark spot posterior to dorsal half of eye; dorsal fin with a large black spot edged with blue. Anterior lateral line scales with 1-3 pores; 9-11 suborbital pores. Anterior dorsal and anal soft rays longer than posterior rays; pelvic fins of males and large females very long, reaching posterior to anus, often to or beyond origin of anal fin. Juveniles with 4 black stripes on head and body.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameHalichoeres prosopeionFamilyLabridae (Wrasses)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length13.0Depth range2–40 m (7–131 ft)EnvironmentMarine; reef-associated; depth range 2 - 40 mClimateTropicalDistributionWestern Pacific: east to Samoa and Tonga.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesAquarium: commercialResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) More wrassesAxil spot wrasseHalichoeres podostigmaAllen's tubelipLabropsis alleniTimor wrasseHalichoeres timorensisPastel-green wrasseHalichoeres chloropterusTail-spot wrasseHalichoeres melanurusArgus wrasseHalichoeres argusSee all wrasses SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026