HomeFish encyclopediaRay-finned fishesCusk eelsPearlfishesMessmate fish Messmate fish (Echiodon rendahli) Scientific name: Echiodon rendahli Whitley, 1941 The Messmate fish (Echiodon rendahli) is a marine fish of the family Carapidae. Native range: Southwest Pacific, Australia and New Zealand. BiologyEel-like, shallow body depth; 1 to several symphyseal fangs on dentary and premaxilla; lacking cardiform teeth, pelvic fins, and swim bladder rocker bone; a patch of ridges posteriorly on the ventral surface of the swim bladder. Vexillum absent in adults.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameEchiodon rendahliFamilyCarapidae (Pearlfishes)OrderOphidiiformes (Cusk eels)ClassActinopterygii (Ray-finned fishes)Maximum length12.0Depth range0–60 m (0–197 ft)EnvironmentMarine; demersal; depth range 0 - 60 mClimateTemperateDistributionSouthwest Pacific: Australia and New Zealand.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: of no interestResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026