Spiders

Spiders

Any arachnid of the order Araneae, having a body divided into a cephalothorax with eight legs, two poison fangs, and two feelers as well as an unsegmented abdomen with several spinnerets that produce the silk used to make nests, cocoons, or webs for trapping insects.

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Beijing, China

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Spiders

epigastric fold

Animals; Spiders

A fold and groove separating the anterior part of the ventral abdomen (with epigyne and book lungs) from the posterior part.

epigyne

Animals; Spiders

A more or less sclerotized and modified external structure associated with the reproductive openings of adult females of most spider species.

epigynum

Animals; Spiders

The more or less complicated apparatus for storing the spermatozoa, immediately in front of the opening of the internal reproductive organs of female spiders.