n = 6
| Scientific Name | Author | Valid Name | Family | English Name |
|---|---|---|---|---|
| Iso flosmaris | Jordan & Starks, 1901 | Iso flosmaris | Isonidae | |
| Iso hawaiiensis | Gosline, 1952 | Iso hawaiiensis | Isonidae | Hawaiian surf sardine |
| Iso natalensis | Regan, 1919 | Iso natalensis | Isonidae | Surf sprite |
| Iso nataliensis | Regan, 1919 | Iso natalensis | Isonidae | Surf sprite |
| Iso nesiotes | Saeed, Ivantsoff & Crowley, 1993 | Iso nesiotes | Isonidae | Samoan surf sardine |
| Iso rhothophilus | (Ogilby, 1895) | Iso rhothophilus | Isonidae | Flower of the wave |