Guide and keys for the identification of Syllidae (Annelida, Phyllodocida) from the British Isles (reported and expected species)

. 2015 Mar 19;(488):1–29. doi: 10.3897/zookeys.488.9061

1	Long blades of compound chaetae bidentate, with both teeth similar. Short blades unidentate	Nudisyllis pulligera (Krohn, 1852) (1, 13)
–	All blades unidentate or with minute, spine-like subdistal tooth	Nudisyllis divaricata (Keferstein, 1862) (1, 13)