HomeFish encyclopediaRay-finned fishesPerch-like fishCrocodile icefishesUnicorn icefish Unicorn icefish (Channichthys rhinoceratus) Scientific name: Channichthys rhinoceratus Richardson, 1844 The Unicorn icefish (Channichthys rhinoceratus) is a marine fish of the family Channichthyidae. Native range: Southern Ocean, endemic to the Kerguelen-Heard Plateau, Antarctica. Species factsScientific nameChannichthys rhinoceratusFamilyChannichthyidae (Crocodile icefishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length60.0Common length40.0Depth range1 m (3 ft)EnvironmentMarine; demersal; depth range 1 - ? mClimatePolarDistributionSouthern Ocean: endemic to the Kerguelen-Heard Plateau, Antarctica.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Assuming tm=4) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026