Palpal bulb

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.

单词	tegulum
释义	tegulum 英汉-汉英词典盾片词组 \| 习惯用语您要查找的是不是： regulate vt. 调节，规定；有系统的管理；控制；校准 legume n. 豆荚；豆类；豆科植物 reticulum n. 网状组织 Telugu n. 泰卢固语（印度东部德拉维拉语言）；泰卢固人网络短语: tegulum 盾片英语百科 Palpal bulb 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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tegulum

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网络短语:

Palpal bulb