| author | date | title | journal / publication | Chow PS, Kiang HM | 1950 | Notes on supernumerary eyes observed in specimens of Planaria gonocephala collected from the Meitan (Kui-Chou Shêng) and Hangchow (His-Chiang Shêng) localities, China. | Chinese Sciences, 1 (2-4): 425-427. (In Chinese) |
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