Ceratocephale Malmgren, 1867

Prostomium with anterior margin indented. Maxillary ring of pharynx without paragnaths. Oral ring papillae present; solitary. Area V papillae present; 3 papillae (close togetehr); VI papillae absent; VII-VIII papillae present. Comprising a single row. 7 papillae. Oral ring paragnaths absent. In Ceratocephale spp, Area V and VI contain up to 3 papillae in total; these are here interpreted as all occurring in Area V, with VI=0,0. Transverse dorsal lamellae present (in all species except C.abyssorum); commencing chaetiger 4–10. Prechaetal notopodial lobe present. Neuropodial postchaetal lobe present, at least on some anterior chaetigers. Ventral neuropodial ligule on posterior chaetigers reduced, up to half length of acicular neuropodial ligule. Ventral cirri paired. Commencing chaetiger 1–3. Notopodial homogomph spinigers present; sesquigomph spinigers present, or absent. Notopodial homogomph falcigers absent. Neuropodial dorsal fascicle fused falcigers absent.