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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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Spiders

Labium

Animals; Spiders

The lip, under the mouth opening and between the maxillae, attached to the front of the sternum.

Lyriform organ

Animals; Spiders

A sensory organ near the distal end of limb segments formed of a group of parallel slit organs.

Maxilla

Animals; Spiders

The mouthparts on each side of the labium which are the modified coxae of the palps..

Median apophysis

Animals; Spiders

A selerite arising from the middle division of the male palpal organs.

Stridulating organ

Animals; Spiders

A file-and-scraper for sound production; may be variously located on chelicerae, palps, legs, abdomen and carapace.

Synonym

Animals; Spiders

Each of two or more scientific names of the same rank used to denote the same taxon. The senior synonym is the name first established.

Sexual dimorphism

Animals; Spiders

A difference in form, color, size, etc., between sexes of the same species.

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