Canalidion is a monotypicgenus of tangle-web spiders containing the single species, Canalidion montanum. The species was first described by James Emerton in 1882 under the name Theridion montanum.[2] J. Wunderlich moved it to its own genus in 2018, because it had more teeth on the anterior margin of the cheliceral furrow, a basal depression of the cymbium, and an embolus positioned dorsally.[3] It has a holarctic distribution.[1]
^Emerton, J. H. (1882). "New England spiders of the family Theridiidae". Transactions of the Connecticut Academy of Arts and Sciences. 6: 10.
^Wunderlich, J. (2008). "On extant and fossil (Eocene) European comb-footed spiders (Araneae: Theridiidae), with notes on their subfamilies, and with descriptions of new taxa". Beiträge zur Araneologie. 5: 819–859.