| author | date | title | journal / publication | Barrett WC Jr | 1929 | The retinula cell of the Turbellarian Prorhynchus applanatus Kennel. | Trans Am Microsc Soc 48: 66-69 |
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| Prorhynchus applanatus Kennel, 1888 | w | other research on this sp. | ||
| Prorhynchus sphyrocephalus (de Man, 1876) | w | other research on this sp. |