| author | date | title | journal / publication | Ichikawa A, Kawakatsu M | 1964 | |
A new freshwater planarian, Dugesia japonica, commonly but erroneously known as Dugesia gonocephala (Duges). | Annot Zool Japon 37: 185-194 |
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| Dugesia japonica Ichikawa & Kawakatsu, 1964 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Dugesia japonica japonica Ichikawa & Kawakatsu, 1964 | w | primary taxonomic authority (describer) |