apical sucker
吸顶盘 Ceiling ; back plate ; Roof disk
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结果表明，豆状囊尾蚴和豆状带绦虫均有4个吸盘，37个小钩分内、外两圈排列在顶突上。
There were 4 suckers in C. pisiformis and the scolex of T. pisiformis, and 37 hooks in the rostellum arranging with inner and outer rings.
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