| author | date | title | journal / publication | Gamble FW | 1896 | abs. | Platyhelminthes and Mesozoa, Chapter 1. Turbellaria. Classification of Rhabdocoelida, pp 49-50 In: S.F. Harmer & A.E. Shipley (Eds.), Cambridge Natural History. | Tom. 2. London 1896. page 1-96, fig 1-19. Macmillan & Co. , London. |
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