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[文献書誌] Tojo,K. & R.Machida: "Embryogenesis of the maytly Ephemera japonica McLachlan (Insecta Ephemeroptera,Ephemridae),with special reference to ..." Journal of Morphology. 234. 97-107 (1997)
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[文献書誌] Tojo,K. & R.Machid: "Embryogenesis of Ephemera japonica McLachlan (Insecta:Ephemeroptera)" Proceedings of Arthropodan Embryological Society of Japan. 32. 25-28 (1997)
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[文献書誌] Machida,R. & H.Ando: "Evolutional changes in developmental potentials of the embryo proper and embryonic membranes along with the derivative..." Proceedings of Arthropodan Embryological Society of Japan. 33. 1-13 (1998)
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[文献書誌] Tojo,K. & R.Machida: "Egg structures of Japanese Ephemera (Insecta:Ephemeroptera:Ephemeridae)" Acquatic Insects. (in press). (1998)
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[文献書誌] Ikeda,Y. & R.Machida: "Embryogenesis of a diplura,Lepidocampa wederi Oudemans (Hexapoda:Diplura): External morphology" Journal of Morphology. (in press). (1998)