Whitley's boxfish

Lore & Background

Whitley's boxfish was first formally described in 1931 by the American zoologist Henry Weed Fowler, with its type locality given as the Marquesas Islands. Fowler's name replaced Ostracion ornatus, a name proposed by Henri Hollard in 1857 that was preoccupied by Ostracion (Aracana) ornata, described by John Edward Gray in 1838. The specific name honours the British-born Australian ichthyologist Gilbert Percy Whitley, who drew Fowler's attention to the need for a replacement name.

The species is sexually dimorphic: males have a navy blue body with pale blue lines along the upper and lower sides and a black dorsal surface marked with pale blue spots, while females are golden yellow with white spots and a white band along the flank. It reaches a maximum published total length of 15.5 cm (6.1 in).

Whitley's boxfish is found in the Eastern Central Pacific Ocean, occurring in the Hawaiian Islands, Johnston Atoll, the Marquesas Islands, and the Tuamotu Islands. It inhabits clear lagoons and seaward reefs at depths between 3 and 27 m (9.8 and 88.6 ft).

Reader's Guide

Whitley's boxfish is a notable member of the family Ostraciidae, distinguished by its sexual dimorphism and restricted distribution in the Eastern Central Pacific. Its taxonomy reflects a nomenclatural correction: Fowler's 1931 description replaced an earlier name by Hollard that was already in use for another species. The specific epithet honors Gilbert Percy Whitley, an ichthyologist who identified the need for this replacement. The species is found in clear lagoons and seaward reefs across the Hawaiian Islands, Johnston Atoll, the Marquesas Islands, and the Tuamotu Islands, at depths from 3 to 27 meters. Its maximum recorded length is 15.5 cm. The genus name Ostracion, meaning 'little box,' refers to the box-like body shape typical of the family. The species is classified within the suborder Ostracioidea of the order Tetraodontiformes, as recognized in the 5th edition of Fishes of the World.