Epigyne

Rarity: Common

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At a glance

Class

Notion

Domain

Science and technology

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What Wikipedia says

The epigyne or epigynum is the external genital structure of female spiders. As the epigyne varies greatly in form in different species, even in closely related ones, it often provides the most distinctive characteristic for recognizing species.

Excerpt from the Wikipedia article “Epigyne”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: G. B. Edwards, CC BY 3.0, via Wikimedia Commons.