Scribbled Spinefoot Siganus doliatus

Spinefoots belong to the Rabbitfish genus. The attractively-marked Scribbled Spinefoot has a number of other common names including the Barred Spinefoot (confusing since several are barred) and the Pencil-streaked or Blue-lined Rabbitfish. It is native to coral reefs of the western Pacific.

The dorsal spines, raised against predators, are venomous, but only painful not lethal to humans. It grows to 25cm long and is herbivorous, eating algae and seaweed.

Adults pair up, often in single-sex pairs, as a mutual protection strategy since rabbitfishes are constantly nibbling at reefs and one of the pair can remain on lookout. Juveniles school together.