Name(s) in cluster
| Ptychognathus altimanus (Rathbun 1914) | urn:lsid:organismnames.com:name:1830058 |
| Ptychognathus altimanus (Rathbun 1915) | urn:lsid:organismnames.com:name:2229212 |
| Ptychognathus altimanus | urn:lsid:organismnames.com:name:4300563 |
...
| Ptychognathus altimanus (Rathbun 1914) | urn:lsid:organismnames.com:name:1830058 |
| Ptychognathus altimanus (Rathbun 1915) | urn:lsid:organismnames.com:name:2229212 |
| Ptychognathus altimanus | urn:lsid:organismnames.com:name:4300563 |