7mm long specimen, Yorke Peninsula, South Australia, February, 1985, (AM C145214). PHOTO: Geoff Avern.
The radula of most flabellinids are characterised by three teeth in each row. In the centre is a denticulated pointed arch-like tooth and on each side a triangular plate with denticles on the inside edge. A few species with 2 or 3 plates on each side are considered to be 'primitive'. In most aeolids, the radula ribbon is reduced to just the central tooth in each row.
Rudman, W.B., 1999 (August 26) Flabellina poenicia Radula. [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/factsheet/rdflabpo