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Acreichthys tomentosus
Also known as Bristle-tailed Leatherjacket, Filefish, Seagrass Filefish, Seagrass Leatherjacket, Matted Filefish, Matted Leatherjacket and Fantail. Color and pattern vary but usually has a dark V shaped marking on its mid-side. They feed on invertebrates and algae, and grow to a length of about 10cm.
Found singly on shallow coral reefs, sand flats and slopes with weedy patches. Widespread in the Indo-Pacific region.
It has a dorsal spike that it raises when it senses danger (see 3rd photo). The 4th photo shows the fish in an agitated state, fleeing away from the pesky cameraman.
Spotted on Nov 5, 2011
Submitted on Dec 5, 2011
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