Phascolion spp.

Diagnosis.

Small to medium-sized worms (<~ 50 mm), commonly inhabiting abandoned gastropod or scaphopod shells, polychaete tubes or foraminiferan tests. Trunk usually with unique holdfast papillae. Single nephridium, usually located posterior to the anus.

Remarks.

Specimens are not identified to species.

Records.

25 specimens. Suppl. material 1: ops. 31, 44, 56, 100, 121, 128 (AM).