Streamlined spinefoot
The streamlined spinefoot (Siganus argenteus) is a species of rabbitfish. It grows to 20 to 40 cm long, and lives in shallow areas of the Indo-Pacific, typically ranging from 2 to 40 m deep. Like all rabbitfish, it has venomous spines on most of its fins. It has been reported to cause hallucinations when consumed.
| Streamlined spinefoot | |
|---|---|
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| At Great Barrier Reef, Australia (above), and Raja Ampat, Indonesia (below) | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Perciformes |
| Family: | Siganidae |
| Genus: | Siganus |
| Species: | S. argenteus |
| Binomial name | |
| Siganus argenteus (Quoy & Gaimard, 1825)[1] | |
Description
It has a blue body with a silvery underside, with dark-brown markings, mostly spots and curved lines; it has 13 venomous dorsal spines, seven anal spines, and silvery-yellow irises. Brown markings become more prominent when it is scared, and its fins will become rigid and erect. It has fine scales on the cheeks and gills; the midline of its thorax is without scales.
Diet
Siganus argenteus is a herbivore, feeding mainly on algae in shallow rocky areas and reefs. It is most commonly found in groups of 10 to 15.