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Keywords from Image Description:
Baseodiscus mexicanus from Brger . en Ribbon worms Baseodiscus mexicanus Eupolia mexicana Nemertea Heteronemertes Valenciniidae cite journal Brger Sdgeorgische und andere exotische Nemertinen Zoologische Jahrbcher Abteilung fr Systematik kologie und Geographie der Tiere org page org page Plate VIII Eugene Dubois pdold Baseodiscus