サクサンガ雄の生殖器付属器官の筋肉と第9神経節から派出する神経の分布

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  • Studies on the Muscles of Appendages of the Genital Organ and the Distribution of Nerve Fibres from the 9th Ganglion in the Male Moth of the Chinese Tussah Silkworm, <i>Antheraea pernyi</i> GUÉRIN
  • サクサンガ オス ノ セイショクキ フゾク キカン ノ キンニク ト ダイ9 シンケイセツ カラ ハシュツ スル シンケイ ノ ブンプ

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Previously the author reported with others on the relation of the sexual behaviour and the role of ganglia in Antheraea moths (YAMASAKI et al., 1953, 1954, 1955, 1956, 1957; NISHIMURA et al., 1958, 1959).<br>The present study reports upon the muscular system in appendages of the genital organ and upon the distribution of nerve fibres from the 9th ganglion in the male moth, which will contribute to the fundamental knowledge on the above-mentioned studies.<br>1. The muscular system consists of the muscles of tubercle, supra-anal plate, chitinous tubercle, uncate chitin, the 10th tergum, and penis at which three kinds of muscles (exo-, meso- and endo-muscle) distribute.<br>2. The nerve fibres from the 9th ganglion are composed of 9 pairs.<br>3. The distributions of the above-mentioned fibres are shown in Table 1.<br>4. It is observed by removing the ganglion of the pupa that the nerve (6) and (7) are originated in the 11th ganglion, the nerve (4), (5) and (9) (sympathetic nerve) in the 12th one, the nerve (1), (2), (3) and (8) (sympathetic nerve) in the 13th one.<br>Table 1

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