| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Emplectonema buergeri Coe, 1901 |
Mottled ribbon worm | Northeast Pacific | 100 |
| Emplectonema gracile (Johnston, 1837) |
Green ribbon worm | Northwest Atlantic, Pacific Ocean and the Mediterranean | |
| Emplectonema neesii (Orsted, 1843) |
Northeast Atlantic and the Mediterranean | ||
| Emplectonema purpuratum unspecified |
Leopard ribbon worm | Northeast Pacific |