HomeFish encyclopediaChimaerasChimaerasPlownose chimaerasPlownose chimaera, American Elephantfish, Cockfish Plownose chimaera, American Elephantfish, Cockfish (Callorhinchus callorynchus) Scientific name: Callorhinchus callorynchus Linnaeus, 1758 Photo: http://www.flickr.com/photos/62193051@N05/5932369964/ The Plownose chimaera, American Elephantfish, Cockfish (Callorhinchus callorynchus) is a marine fish of the family Callorhinchidae. In the aquarium it needs water at 5–10°C (41–50°F). Native range: Southeast Pacific and Southwest Atlantic. Plownose chimaera, American Elephantfish, Cockfish care at a glanceTemperature5–10°C (41–50°F) Species factsScientific nameCallorhinchus callorynchusFamilyCallorhinchidae (Plownose chimaeras)OrderChimaeriformes (Chimaeras)ClassHolocephali (Chimaeras)Maximum length89.2Common length70.0Depth range10–116 m (33–381 ft)EnvironmentMarine; demersal; depth range 10 - 116 mClimateSubtropicalDistributionSoutheast Pacific and Southwest Atlantic.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesFisheries: commercialResilienceLow, minimum population doubling time 4.5 - 14 years (Fec assumed to be SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026