| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Nectonema agile Verril, 1879 |
Atlantic Ocean and the Mediterranean | 2 | |
| Nectonema melanocephalum Nierstrasz, 1907 |
Western Central Pacific | 0.47 | |
| Nectonema munidae Brinkmann, 1930 |
Northeast Atlantic | 1.55 | |
| Nectonema svensksundi Bock, 1908 |
Northeast Atlantic | ||
| Nectonema zealandica Poinar & Brockerhoff, 2001 |
Southwest Pacific |