Archive image from page 214 of Die Descendenztheorie; (1901). Die Descendenztheorie; diedescendenzthe00flei Year: 1901 Fig. 98. Entwicklungsformeu des Leberegels. 1 Fliminerlarve, 2 Sporocyste, 3 Eedie, 4 Cercarie. Die Flimnierlarve nistet sicb in der Leber ein, verliert dabei alle fiir das Wasserleben wicbtigen Organe, die schwarzen Augen-

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