Sphaerodoridium cf. minutum, from Barents Sea (ZMBN 129500), scanning electron micrographs. A Complete specimen, dorsal view B anterior chaetigers, ventral view C dorsal macrotubercles (slightly stalked) and epithelial papillae, mid-body chaetigers D detached macrotubercle, showing short peduncle E ventral papillae, mid-body chaetigers F parapodia, chaetigers 1–4, side view G parapodium, chaetiger 5, anterior view H parapodium, chaetiger 3, posterior view I parapodium, chaetiger 5 J chaetal fascicle, mid-body chaetiger K chaetae, detail.