Aeolidiella alderi (Cocks, 1852)
Author & date of last revision: Ian Smith on 24 October 2012
Eolida soemmerringii auctt. [ICZN suppressed]; Eolis glauca Alder & Hancock, 1845 (part);
Caution: There is uncertainty among experienced malacologists about the identification of Aeolidiella spp. Recorders are advised to take clear photographs of their finds for future reference. It is hoped that the situation may be clarified by examination of radulae and DNA sequencing in the future.
Body (excluding appendages)
Key identification features
Ecology and behaviour
Lower shore and shallow sublittoral. Eats anemones, including Actinithoe sphyrodeta (EML), Cereus pedunculatus (EML), Metridium senile (EML), Diadumene cincta (EML), Sagartia spp. (EML), Sagartiogeton lacerata (EML) and Parastephanauge pauxi. Before feeding, the anterior white ruff of cerata may elongate and shoot nematocysts into the prey. Simultaneous hermaphrodite. Spawn a sinuous line of large ova arranged in a loose indistinct circle (Nembro). No planktonic veliger stage.