| author | date | title | journal / publication | Sopott-Ehlers B, Ehlers U | 1997 | Electromicroscopical investigations of male gametes in Ptychopera westbladi (Platyhelminthes, Rhabdocoela, "Typhloplanoida"). | Microfauna Marina 11: 193-208 |
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| Ptychopera westbladi (Luther, 1943) Den Hartog, 1964 | [with synonyms] | w | other research on this sp. |