Description

Also known as Blacksaddle Filefish, Blacksaddle Leatherjacket, Blacksaddle Mimic, Blacksaddle Mimic Filefish, Blacksaddle Toby Mimic, Black-saddled Filefish, Black-saddled Leatherjacket, Hooked Filefish, Leatherjacket, Mimic Filefish, Mimic Leatherjacket, Saddled Filefish, Toby, Valentini Mimic.

Found singly, pairs, or in small schools, over clear lagoons and seaward reefs, rich in algae growth.
They feed on algae, eggs, and molluscs.
Length - 10cm
Depth - 1-25m
Widespread Indo-Pacific

They mimic the Saddled Pufferfish, and have a file-like 1st Dorsal Fin as well as long transparent fins instead of the paddle-like fins of the Pufferfish.
Filefish can alter their colour and pattern to match their surrounds and so deter predators.
Although closely related to the Triggerfish, their "trigger spine" cannot be locked into place. Ref: https://www.fishbase.se/summary/6560