Aeolidiella glauca
(Alder & Hancock, 1845)

Family: Aeolidiidae


British Isles, Denmark to France.


UPPER: Reagh Is., Strangford Lough, N. Ireland - 22 Jun 1976. LOWER: Newquay, Co Clare, Ireland - 30 May 1982. PHOTOS: Bernard Picton.

Grows to about 40mm long, and feeds on a variety of sea anemones. It is hard to differentiate in shape and colour from A. alderi, but it has a quite different reproductive behaviour with A. glauca having planktotrophic larval development while A. alderi has direct development, with no planktonic larval stage. See Bernard Picton's message differentiating A. alderi, A. sanguinea and A. glauca.

• Thompson, T.E. & Brown, G.H. (1984) Biology of Opisthobranch Molluscs, Vol 2. Ray Society: London.

Authorship details
Rudman, W.B., 1999 (August 22) Aeolidiella glauca (Alder & Hancock, 1845). [In] Sea Slug Forum. Australian Museum, Sydney. Available from

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