Fish ID: Pygmy Leatherjacket

Leatherjacket pygmy leatherjacket hp
Family Filefish (MONACANTHIDAE)
species Brachaluteres excelsius
size Up to 9cm
locality Anywhere there's kelp
range Temperate waters around southern Australia

Unusual member of family, apart from being very much the smallest – it has the ability to puff up like a pufferfish – probably because it’s the smallest!