Fish ID: Six-spine Leatherjacket

Leatherjacket six spine leatherjacket male hp
Family Filefish (MONACANTHIDAE)
species Meuschenia freycineti
size Up to 50cm
locality Anywhere there's kelp
range Temperate waters around southern Australia

These are typical eastern variants: males are typically blue with a yellow blotch/patch on the middles of their sides. Truncate tail.