| author | date | title | journal / publication | Beauchamp Pde | 1961 | |
Classe de Turbellaries. In P.-P. Grasse (ed): Traite de Zoologie; anatomie, systematique, biologie. IV. Plathelminties, Mesozoaries, Acanthocephales, Nemertiens. | 4, fasc. 1 (Masson et Cie: pages 35-212, 887-890). Paris: Masson et Cie. 944 pp. |
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