| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Sphaerolaimus balticus Schneider |
Northeast Atlantic | ||
| Sphaerolaimus dispar Filipjev, 1918 |
Northwest Atlantic | ||
| Sphaerolaimus gracilis De Man 1876 |
Northeast Atlantic | ||
| Sphaerolaimus hirsutus Bastian, 1865 |
Northeast Atlantic | ||
| Sphaerolaimus islandicus Ditlevsen, 1926 |
Northeast Atlantic | ||
| Sphaerolaimus paradoxus (Ditlevsen, 1918) |
Northeast Atlantic |