Siganus argenteus or Streamlined Spinefoot is a species of rabbitfish

Rabbitfish

Rabbitfishes or spinefoots are perciform fishes in the family Siganidae. The 28 species are in a single genus, Siganus. In some now obsolete classifications, the species having prominent face stripes—colloquially called foxfaces–are in the genus Lo. Other species like the Masked...

. It grows between 20 and 40 cm, and lives in shallow areas of the Indo-pacific, typically ranging from 2 to 40m. Like all rabbitfish it has venomous spines on most of it's fins.

Description

It is has a blue body with a silvery underside, with dark brown markings, mostly spots and curved lines it has 13 venomous dorsal spines, 7 anal spines and a silvery yellow iris. Brown markings will become more prominent when scared, and fins will become rigid and errect. It has fine scales on cheek and gills, the midline of thorax without scales.

Diet

S.argenteus is a herbivore feeding mainly on algae in shallow rocky areas and reefs, it is most commonly found in groups of around 10 to 15.