Figure 3. Terebellides longicaudatus Hessle, 1917. SEM micrographs from syntype SMNH 6631 in Revision of three species of Terebellides (Polychaeta: Trichobranchidae) described by C. Hessle in 1917 from the Southern Ocean

Figure 3. Terebellides longicaudatus Hessle, 1917. SEM micrographs from syntype SMNH 6631. (A) Anterior end, lateral view; (B) Notopodium, first thoracic chaetiger; (C) Geniculate acicular hook, 6th thoracic chaetiger; (D) Geniculate hook, internal structure, detail showing fused inner hollow channels; (E) Thoracic chaetigers 11 to 13, lateral view; (F) Thoracic dorsal papilla; (G) Mid-abdominal chaetigers, lateral view; (H) Abdominal uncini. Arrows show position of dorsal papillae.