| Synonym | Author | CoL Status | Valid | Synonymy | Combination |
|---|---|---|---|---|---|
| Phascolosoma diaphanes | (Sluiter, 1886) | synonym | No | junior synonym |
new combination |
| Phascolosoma duplicigranulatum | (Sluiter, 1886) | synonym | No | junior synonym |
new combination |
| Phascolosoma evisceratum | (Lanchester, 1905) | synonym | No | junior synonym |
new combination |
| Phascolosoma extortum | (Sluiter, 1902) | synonym | No | junior synonym |
new combination |
| Phascolosoma hainanicum | Chen, 1963 | synonym | No | junior synonym |
original combination |
| Phascolosoma horsti | (ten Broeke, 1925) | synonym | No | junior synonym |
new combination |
| Phascolosoma lacteum | (Sluiter, 1886) | synonym | No | junior synonym |
new combination |
| Phascolosoma minutum | (ten Broeke, 1925) | synonym | No | junior synonym |
new combination |
| Phascolosoma nigrescens | Keferstein, 1865 | accepted name | Yes | senior synonym |
original combination |
| Phascolosoma planispinosum | Baird, 1868 | synonym | No | junior synonym |
original combination |
| Phascolosoma plicatum | (de Quatrefages, 1865) | synonym | No | junior synonym |
new combination |
| Phascolosoma puntarenae | Grübe & Oersted, 1858 | synonym | No | junior synonym |
original combination |
| Phascolosoma spengeli | (Sluiter, 1886) | synonym | No | junior synonym |
new combination |
| Phascolosoma uncatum | Chen, 1963 | synonym | No | junior synonym |
original combination |
| Phascolosoma varians | Keferstein, 1865 | synonym | No | junior synonym |
original combination |
| Phymosoma diaphanes | Sluiter, 1886 | synonym | No | junior synonym |
original combination |
| Phymosoma duplicigranulatum | Sluiter, 1886 | synonym | No | junior synonym |
original combination |
| Phymosoma lacteum | Sluiter, 1886 | synonym | No | junior synonym |
original combination |
| Phymosoma nigrescens | (Keferstein, 1865) | synonym | No | senior synonym |
new combination |
| Phymosoma spengeli | Sluiter, 1886 | synonym | No | junior synonym |
original combination |
| Phymosoma varians | (Keferstein, 1865) | synonym | No | junior synonym |
new combination |
| Physcosoma agasizii var. puntarenae | (Keferstein, 1867) | synonym | No | junior synonym |
new combination |
| Physcosoma duplicigranulatum | (Sluiter, 1886) | synonym | No | junior synonym |
new combination |
| Physcosoma evisceratum | Lanchester, 1905 | synonym | No | junior synonym |
original combination |
| Physcosoma extortum | Sluiter, 1902 | synonym | No | junior synonym |
original combination |
| Physcosoma horsti | ten Broeke, 1925 | synonym | No | junior synonym |
original combination |
| Physcosoma lacteum | (Sluiter, 1886) | synonym | No | junior synonym |
new combination |
| Physcosoma minutum | ten Broeke, 1925 | synonym | No | junior synonym |
original combination |
| Physcosoma nigrescens | (Keferstein, 1865) | synonym | No | senior synonym |
new combination |
| Physcosoma spengeli | (Sluiter, 1886) | synonym | No | junior synonym |
new combination |
| Physcosoma varians | (Keferstein, 1865) | synonym | No | junior synonym |
new combination |
| Sipunculus plicatus | de Quatrefages, 1865 | synonym | No | junior synonym |
original combination |
| Sipunculus puntarenae | (Grübe & Oersted, 1858) | synonym | No | junior synonym |
new combination |