Two antennae. Four pairs of tentacular cirri. Pectinate bars and conical paragnaths on both oral and maxillary rings. Parapodia biramous. Notosetae homogomph spinigers and falcigers some falcigers forming simple hooks. Neurosetae homogomph and heterogomph spinigers and heterogomph falcigers.

Platynereis bicanaculata (Marenzeller, 1879)
Found:South China Sea, Southern Japan (after Imajima 1972)

Platynereis dumerilii (Audouin & Milne Edwards, 1833)
Found: West Thailand, Sri Lanka, Java, Philippines, N. Australia, South China Sea (after Imajima 1972)

Platynereis australis (Schmarda, 1861)
Found: Auckland, New Zealand, Magellan Region, Chile, Western Australia, South West Africa, Japan (after Imajima 1972)