HomeFish encyclopediaRay-finned fishesScorpionfishes and FlatheadsScorpionfishes or rockfishesMcAdam's scorpionfish McAdam's scorpionfish (Parascorpaena mcadamsi) Scientific name: Parascorpaena mcadamsi Fowler, 1938 The McAdam's scorpionfish (Parascorpaena mcadamsi) is a marine fish of the family Scorpaenidae. Native range: Indo-Pacific, East Africa to the Ducie Islands, north to Ryukyu Islands, south to Rapa; Belau [=Palau] and Marshall Islands in Micronesia. BiologyDorsal spines (total): 12; Dorsal soft rays (total): 8-9; Anal spines: 3; Anal soft rays: 5. Large males with a large black spot at rear of spinous dorsal fin; females and juveniles with no spot or a faint one.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameParascorpaena mcadamsiFamilyScorpaenidae (Scorpionfishes or rockfishes)OrderScorpaeniformes (Scorpionfishes and Flatheads)ClassActinopterygii (Ray-finned fishes)Maximum length7.0Depth range37 m (121 ft)EnvironmentMarine; reef-associated; depth range ? - 37 mClimateTropicalDistributionIndo-Pacific: East Africa to the Ducie Islands, north to Ryukyu Islands, south to Rapa; Belau [=Palau] and Marshall Islands in Micronesia.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (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