Known from all of Australia except Victoria and Tasmania.
Camp Cove, Sydney Harbour, New South Wales, 9m, October 1977. (45mm long).
Photo: Bill Rudman.
One of a number of species with a colour pattern of black and white longitudinal lines. See also Armina sp. 1. and Armina sp. 2.
See messages below from Leanne Atkinson on egg-laying and Janalie Besoff on feeding.
• Bergh, L.S.R. (1876). Neue Beiträge zur Kenntniss der Pleurophyllidien. Malakoz. Blätt. 23: 1-14, pl. 1
Rudman, W.B., 1998 (March 9) Armina cygnea (Bergh, 1876). [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/factsheet/armicyg
From: Meenie, February 16, 1999
Egg masses; Armina laying in sand
From: Leanne Atkinson, March 15, 1998
Feeding habits of Armina cygnea
From: Janalie Besoff, March 9, 1998