Morphology and development of a lung fluke of the genus Paragonimus (Trematoda : Paragonimidae) from primor’e, USSR, in snails, Semisulcospira libertine, in the Laboratory

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  • ソ連沿海州産Paragonimus属肺吸虫 (Trematoda : Paragonimidae) の実験室内におけるカワニナ Semisulcospira libertina 体内での形態と発育
  • ソレン エンカイシュウサンParagonimusゾク ハイキュウチュウ Tre

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Abstract

40002771423

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Experiments were made to infect Japanese snails, Semisulcospira libertine, with miracidia of a lung fluke, Paragonimus sp., from Primor’e, USSR, in the laboratory. Cercariae developed fully at above 25℃ in about 9 weeks after infection. The miracidium, sporocyst, mother and daughter rediae, and cercaria are described. The development of the fluke in the snail is outlined. The fluke is considered most closely related to P. westermani ichunensis Chung, Hsu et Kao, 1978. Cercariae of three other species of natural infection also were found in the snails used. The fluke cercariae were recovered at much higher rates from the snails infected concurrently with the fluke and Cercaria incerta than from those infected with in other combinations of the trematodes. A positive intramolluscan interaction between the fluke and C. incerta is suggested.

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