| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Halichoanolaimus dolichurus Ssaweljev, 1912 |
Northeast Atlantic | ||
| Halichoanolaimus macrospiculatus Hopper, 1961 |
Western Central Atlantic | ||
| Halichoanolaimus quattuordecimpapillatus Chitwood, 1951 |
Western Central Atlantic | ||
| Halichoanolaimus robustus (Bastian, 1865) |
Northwest Atlantic |