Two hundred eleven species in 149 genera and 42 families of polychaetous annelids are named. Most come from the Weddell Sea Quadrant. One family, Helmetophoridae, is new. Three genera,
Helmetophorus in Helmetophoridae,
Flabelliseta in Flabelligeridae, and
Emaga in Ampharetidae, are new. Twenty-one species are new:
Eunoe brunnea and
Eunoe spica in Polynoidae;
Eulalia pachycirra and
Nipponophyllum antarcticum in Phyllodocidae;
Helmetophorus rankini in Helmetophoridae;
Apistobranchus glacierae in Apistobranchidae;
Laonice weddellia in Spionidae;
Caulleriella antarctica and
Chaetozone pinguis in Cirratulidae;
Flabelliseta incrusta,
Ilyphagus antarcticus, and
Ilyphagus cristata in Flabelligeridae;
Asclerocheilus nigrocirrus in Scalibregmidae;
Ammotrypane setigera in Opheliidae;
Myriochele scotiae in Oweniidae;
Emaga laevis,
Glyphanostomum scotiarum, and
Parampharete weddellia in Ampharetidae; and
Euchone heteroseta,
Euchone scotiarum, and
Jasmineira regularis in Sabellidae. One subspecies,
Pseudoscalibregma bransfieldia collaris in Scalibregmidae, is new. One name,
Praxillella monroi in Maldanidae, is new. Seven combinations are new:
Haploscoloplos minutus in Orbiniidae;
Aricidea simplex in Paraonidae;
Fauveliopsis brevis in Fauveliopsidae;
Asclerocheilus aciculatus and
Pseudoscalibregma bransfieldia in Scalibregmidae;
Eusamythella sexdentata in Ampharetidae; and
Axionice spinigera in Terebellidae. The following species have their accounts emended or their illustrations added:
Brada bransfieldia and
Bradabyssa papillata in Flabelligeridae;
Fauveliopsis challengeriae in Fauveliopsidae;
Kebuita minuta,
Pseudoscalibregma bransfieldia, and
Sclerocheilus antarcticus in Scalibregmidae; and
Travisia antarctica in Opheliidae.