| author | date | title | journal / publication | Ax P | 1997 | Two Prognathorhynchus species (Kalyptorhynchia, Plathelminthes) from the North Inlet Salt Marsh of Hobcaw Barony, South Carolina, USA. | Microfauna Marina 11:317-320 |
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| Prognathorhynchus eurytuba Ax & Armonies, 1987 | w | other taxonomic work | 318-319, Figs 1A; 2 A, B | |
| Prognathorhynchus busheki Ax, 1997 | [with synonyms] | w | primary taxonomic authority (describer) | 320, Figs 1B, C, D; 2 C, D |