Highfin velvetfish (Cocotropus altipinnis), first described by Waite, 1903 is a tiny fish in the family Aploactinidae (order Perciformes). Adults typically reach 3.20 cm in maximum length. It inhabits marine coastal and open-ocean environments. It occurs in Temperate waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus.
Dorsal spines (total): 13; Dorsal soft rays (total): 10; Anal spines: 1; Anal soft rays: 8 - 9; Vertebrae: 28. Upper jaw relatively short, 10-11% SL; a stubby fleshy cirrus near distal end of maxilla .
Behavioural data for Highfin velvetfish is currently being reviewed.
Marine; demersal. Temperate Southwest Pacific: Lord Howe Island, Australia.
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