Photo of Animalia: Dusky Flathead (species: Platycephalus fuscus)

Dusky Flathead (Platycephalus fuscus)

© John Turnbull

They have no need for a swim bladder as they spend most of their time lying on the bottom. When they swim it's in short bursts and when they stop they sink.

Shelly Beach, Sydney, NSW

Photo taken on 28 Nov 2014