Four genera and five species of polynoids are reviewed and revised, including
Acholoe Claparède, 1870, for
A. astericola (Delle Chiaje, 1841), commensal with asteroids;
Arctonoella Buzhinskaja, 1964, for
A. sinagawaensis (Izuka, 1912); new genus
Paractonoella, for
P. indica (Day, 1973). n. comb., and
P. aphthalma (Gallardo, 1968), n. comb., with ophiuroid (both as
Intoshella); and
Intoshella Darboux, 1900, for
I. euplectellae (McIntosh, 1885), with glass sponge. All species are referred to the new subfamily Acholoinae, characterized by arctonoid type of prostomium and biramous parapodia with neuropodia deeply notched dorsally and ventrally, shorter rounded postsetal lobes and longer presetal acicular lobes, bifid distally, with longer supraacicular processes.