| Synonym | Author | CoL Status | Valid | Synonymy | Combination |
|---|---|---|---|---|---|
| Phascolosoma australe | Keferstein, 1865 | synonym | No | senior synonym |
original combination |
| Siphonosoma australe | (Keferstein, 1865) | accepted name | Yes | senior synonym |
new combination |
| Siphonosoma australe australe | (Keferstein, 1865) | accepted name | No | senior synonym |
new combination |
| Siphonosoma australe takatsukii | Satô, 1935 | accepted name | No | senior synonym |
original combination |
| Siphonosoma pescadolense | Satô, 1939 | synonym | No | junior synonym |
original combination |
| Siphonosoma takatsukii | Satô, 1935 | synonym | No | senior synonym |
original combination |
| Sipunculus aeneus | Baird, 1868 | synonym | No | junior synonym |
original combination |
| Sipunculus australis | (Keferstein, 1865) | synonym | No | senior synonym |
new combination |