| author | date | title | journal / publication | Ax P, Schilke K | 1971 | Karkinorhynchus tetragnathus nov. spec., ein Schizorhynchier mit zweigeteilten Rüsselhaken (Turbellaria, Kaylyptorhynchia). | Mikrof Meeresb 5:139-146 |
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| Karkinorhynchus (Karkinorhynchides) tetragnathus Ax & Schilke, 1971 | w | primary taxonomic authority (describer) | ||
| Karkinorhynchides tetragnathus (Ax & Schilke, 1971) | w | primary taxonomic authority (describer) | ||
| Lehardyia tetragnatha (Ax & Schilke, 1971) | [with synonyms] | w | primary taxonomic authority (describer) |