The eunicemorph polychaetes from Antarctic and Subantarctic seas are reviewed, and new data adding to the knowledge of the eunicemorphs from New Zealand, Australia, Chile, and Argentina have been included. The systematics of the order Eunicemorpha is discussed, and suggestions are made pertinent to the status and definition of some families. It is proposed to merge the Lysaretidae with the Lumbrineridae, and the Oenonidae with the Arabellidae, and to redefine the Iphitimidae as a family independent of the Dorvilleidae.
Abyssoninoe, new genus, is erected for lumbrinerids in the "abyssorum" group of
Lumbrineris sensu lato. The lumbrinerid genus
Eranno Kinberg is revived and redefined, and
Lumbrineris Blainville is restricted. Three new genera,
Mammiphitime,
Pinniphitime, and
Palpiphitime, are erected within the Iphitimidae. The following new species are described:
Leptoecia vivipara (Antarctic; =
Leptoecia abyssorum sensu Monro, 1939),
Hyalinoecia incubans (New Zealand),
Eunice austropacifica (Pacific-Antarctic Ridge; =
Eunice frauenfeldi sensu Hartman, 1967, in part),
Marphysa galluccii (Bounty-Antipodes Plateau),
Arabella protomutans (Magellanic Province; =
A. iricolor sensu Monro, 1930),
Drilonereis viborita (Chile),
Pettiboneia hartmanae (Antarctic; =
Dorvillea furcata sensu Hartman, 1978),
Mammiphitime tridentata (Magellanic Province; =
Ophryotrocha claparedei sensu Hartman, 1953, in part), and
Pinniphitime pinnognatha (Antarctic; =
Paractius notialis sensu Ehlers, 1913, in part). The diagnosis of several species is substantially expanded, and new synonymies are presented in many cases, largely based on the reexamination of collections studied by other authors.