| author | date | title | journal / publication | Tsuyuki A, Oya Y, Kajihara H | 2019 | abs. | A new species of Prosthiostomum (Platyhelminthes: Polycladida) from Shirahama, Japan. | Species Diversity 24(2):137-143 [doi: 10.12782/specdiv.24.137 goto] |
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| Prosthiostomum torquatum Tsuyuki, Oya & Kajihara, 2019 | w | primary taxonomic authority (describer) | 138 |