Onchnesoma sp.

Diagnosis.

Small worms (<10 mm). Introvert always longer than trunk. Anus on distal end of introvert. No introvert hooks. Single nephridium.

Remarks.

Specimens are not identified to species. This is the first report of this genus from Australian waters.

Records.

4 specimens. Suppl. material 1: ops. 31, 119 (AM).