Genus of spiders
Chthonos is a genus of South American ray spiders that was created by Jonathan A. Coddington in 1986 because the previous name was preoccupied. Originally placed with the Orb-weaver_spiders under the name "Tecmessa", it was transferred to the ray spiders in 1986.
Species.
As of  2020[ [update]] it contains five species, found in Peru, Brazil, and Ecuador:
Formerly included:
References.
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