| Nominal Species (n = 6) | Present allocation (n = 6) | Ref. |
|---|---|---|
| Priapulus abyssorum Menzies, 1959 | Priapulus abyssorum | 19 |
| Priapulus caudatus Lamarck, 1816 | Priapulus caudatus | 19 |
| Priapulopsis cnidephorus Salvini-Plawen, 1973 | Priapulopsis cnidephorus | 19 |
| Halicryptus higginsi Shirley & Storch, 1999 | Halicryptus higginsi | 19 |
| Halicryptus spinulosus von Siebold, 1849 | Halicryptus spinulosus | 19 |
| Priapulus tuberculatospinosus Baird, 1868 | Priapulus tuberculatospinosus | 19 |