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词汇 Palpal organ
分类 英语词汇 英语翻译词典
释义

Palpal organ

英语例句库

The prey items in the drops were identified with morphological characters of the fecal fragments, such as heads, abdomens, chelicerae, palpal organs, legs, cerci, scales and wings.

在检视排遗中的碎片时，依头部、腹部、螫肢、触肢器、步足、尾毛、鳞片与翅等的形态特徵确认楚南氏山椒鱼的食物项目。

英语百科

Palpal bulb

Male Cheiracanthium mildei showing the enlarged and darker palpal bulbs at the end of the pedipalps
Left palpal bulb of a male Thaida chepu: 1 – from the right (side nearest the mouth); 2 – from the underside; 3 – from the left (side away from the mouth)bH – basal hematodocha; Cb – cymbium; E – embolus; HSt – hook of subtegulum; mA – median apophysis; mH – median hematodocha; PSt – process of subtegulum; St – subtegulum; Te – tegulumSee text for further explanation.
Simple palpal bulb of Unicorn catleyi, a member of the Haplogynae group of spiders

The two palpal bulbs or palpal organs are the copulatory organs of a male spider. They are borne on the last segment of the pedipalps (the front "limbs" of a spider), giving the spider an appearance often described as like wearing boxing gloves. The palpal bulb does not actually produce sperm, being used only to transfer it to the female. Palpal bulbs are only fully developed in adult male spiders and are not completely visible until after the final moult. In the majority of species of spider, the bulbs have complex shapes and are important in identification.
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