HomeMarine aquarium fishTriggers, puffers & boxfishRedtail triggerfish Redtail triggerfish (Xanthichthys mento) Scientific name: Xanthichthys mento Jordan & Gilbert, 1882 The Redtail triggerfish (Xanthichthys mento) is a marine fish of the family Balistidae. BiologyDorsal spines (total): 3; Dorsal soft rays (total): 29-32; Anal spines: 0; Anal soft rays: 26 - 29. Males are straw-yellow with each scale outlined in black creating a crosshatched appearance, and a red tail with neon submarginal blue band. Females are also crosshatched, but with a slate gray to blue ground color and tail.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameXanthichthys mentoFamilyBalistidae (Triggerfishes)OrderTetraodontiformes (Puffers and Filefishes)ClassActinopterygii (Ray-finned fishes)Maximum length29.0Depth range3–100 m (10–328 ft)EnvironmentMarine; reef-associated; depth range 3 - 100 mClimateSubtropicalDistributionWestern Pacific: southern Japan and the Ryukyu, Izu, Marcus, Wake and Hawaiian islands. Eastern Pacific: southern California, USA and the Pitcairn, Easter, Revillagigedo, Clipperton, and the Galapagos islands.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesAquarium: commercialResilienceHigh, minimum population doubling time less than 15 months (Fec=32,000 (from an egg cluster)) More triggers, puffers & boxfishWhite-banded triggerfishRhinecanthus aculeatusSargassum triggerfishXanthichthys ringensPlanehead filefishStephanolepis hispidusSpotted trunkfishLactophrys bicaudalisFringed filefishMonacanthus ciliatusHoneycomb cowfishAcanthostracion polygoniusSee all triggers, puffers & boxfish SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026