サソリモドキの発生 The development of a whip scorpion, <i>Typopeltis stimpsonii</i> WOOD

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On July 12 and 13, 1953, the writer collected three females of <i>Typopeltis stim-psonii</i> together with their egg-sacs at Ushibuka in Amakusa, Kyushu. The embry-onic development of this species was very similar to that of <i>Thelyphonus caudatus.</i> When the eggs were collected (presumedly about two weeks after oviposition) the germ disk formation was already advanced. Two days after the germ disk for. mation the abdominal process, which was identified by SCHIMKEWITSCH (1906) as primitive cumulus, appeared near the margin of the germ disk (Figs. 1, 2). Then the germ disk was transformed into a germ band, which was segmented by cros-sing of transverse grooves and the cephalic lobe, cheliceral segment, palpal segment, and four leg segments were formed (Fig. 3). The abdominal process cut out successively the abdominal segments forward and by this teloblastic growth the abdominal portion grew in length (Figs. 4-7). No abdominal appendages appeared at any stage. The lateral organs appeared within eight days after the germ disk formation (Fig. 5). Near the hatching the egg membranes were perfora. ted by the egg-teeth which developed at the base of the palps and of the legs (Fig. 8). By moving of the embryo air was drawn through the incisions made by the egg-teeth into the space between the embryo and the egg membrane. Hatching and the first ecdysis occurred simultaneously by the 18th day after the formation of the germ disk.

収録刊行物

  • Acta Arachnologica

    Acta Arachnologica 17(2), 19-24, 1961

    日本蜘蛛学会

各種コード

  • NII論文ID(NAID)
    130003423283
  • NII書誌ID(NCID)
    AN00000074
  • 本文言語コード
    ENG
  • ISSN
    0001-5202
  • NDL 記事登録ID
    8986836
  • NDL 雑誌分類
    ZR4(科学技術--生物学--動物)
  • NDL 請求記号
    Z18-1
  • データ提供元
    NDL  J-STAGE 
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