The terebellid fauna of Hong Kong was poorly known prior to this survey being carried out in 1986. As a result the fauna consists of at least 19 species, belonging to 13 genera. Twelve new species are described,
Polycirrus dodeka n.sp.,
P. multus n.sp.,
P. quadratus n.sp.,
Rhinothelepus occabus n.sp.,
Streblosoma duplicata n.sp.,
Thelepus opimus n.sp.,
T. pulvinus n.sp.,
Eupolymnia umbonis n.sp.,
Lanice auricula n.sp.,
Loimia bandera n.sp.,
Longicarpus nodus n.sp., and
Terebella copia n.sp. Full descriptions are given of the other previously described species and a key to all species is given.