A Talarian hook spider was an arachnid species, with legs approximately a half meter in length.

During this time, Miles O'Brien was called in to reroute an emitter array at a starbase on Zayra IV, when he encountered twenty hook spiders in a Jefferies tube. He recalled to Reginald Barclay that this incident helped stem his fear of arachnids. (TNG: "Realm of Fear")

Presumably, these creatures originate from Talarian space.

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