Sosane Malmgren, 1866

Prostomium anteriorly truncated, trilobed. Buccal tentacles smooth. Oral membrane smooth and folded. Prostomial dorsal glandular ridges absent. Branchiae 4 pairs. All branchiae similar, all smooth, none basally flanged. Branchiae in two groups inserted mid-dorsally, connected basally. Paleae on segment 3 present, short. Dorsal crest absent. Nuchal (post branchial) hooks on segment 4 absent. Notopodia with one pair elevated, on chaetiger(s) 13. Notochaetae both smooth and distally hirsute, present from segment 3. Notochaetae of chaetiger 13 modified with long plumed tips. Neuropodia present, tori of similar length throughout thorax. Segments 3–6 without neurochaetae. Number of pairs of thoracic uncinigers 12. Abdominal notopodial rudiments present. Anal cirri present, 1 pair.

Description generated from: Hutchings, PA & Johnson, RT, 2003. Australian Ampharetidae (Polychaeta) DELTA database. In Wilson RS, Hutchings PA & Glasby CJ (eds) Polychaetes: Interactive Identification and Information Retrieval. CSIRO Publishing, Melbourne.

Additional references:
Fauchald, K. 1977. The polychaete worms. Definitions and keys to the orders, families and genera. Natural History Museum of Los Angeles County, Science Series 28, 1-188.
Imajima, M., Reuscher, M. G., & Fiege, D. (2013). Ampharetidae (Annelida: Polychaeta) from Japan. Part II: Genera with elevated and modified notopodia. Zootaxa, 3647(1), 137-166.