Sio (genus)
| Sio | |
|---|---|
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Beryciformes |
| Family: | Melamphaidae |
| Genus: | Sio Moss, 1962 |
| Species: | S. nordenskjoldii |
| Binomial name | |
| Sio nordenskjoldii (Lönnberg, 1905) | |
| Synonyms | |
|
Melamphaes (Plectromus) nordenskjoldii Lönnberg, 1905 | |
Sio is a monotypic genus of fish in the family Melamphaidae, the ridgeheads. The only species is Sio nordenskjoldii, or Nordenskjold's bigscale. It has a circumglobal distribution on the southern hemisphere at depths from 200 to 3,000 metres (660 to 9,840 ft).