Polynoidae Malmgren, 1867
Halosydnella australis (Kinberg, 1856)
Halosydnella brasiliensis (Kinberg, 1858)
Halosydnella elegans (Kinberg, 1858)
Halosydnella fusca (Müller in Grube, 1858)
Halosydnella fuscamaculata (Treadwell, 1924)
Halosydnella galapagensis (Monro, 1928)
Halosydnella grisea (Treadwell, 1929)
Halosydnella punctulata (Grube, 1856)
