Identity of Armina sp. 9

April 19, 2005
From: Bill Rudman

I note that Debelius (1996) has a photo from eastern Australia of the arminid in the Atkinson's recent message [#13514 ] which he identifies as Armina japonica. I assume he is referring to Armina japonica (Eliot, 1913), which was redescribed by Baba (1949). It is definitely not that species, which has a smooth oral veil - no papillae, and the foot and oral veil are purple with a yellow border.

  • Baba, K (1949) Opisthobranchia of Sagami Bay collected by His Majesty The Emperor of Japan. Iwanami Shoten, Tokyo. 194pp., 50 Pls.
  • Debelius, H. (1996) Nudibranchs & Sea Snails Indo Pacific Field Guide
    321 pages.
  • Eliot, C.N.E. (1913)  Japanese nudibranchs. Journal of the College of Science, Tokyo Imp. University, 35: 1-47. (Pls.1-2)

Bill Rudman

Rudman, W.B., 2005 (Apr 19) Identity of Armina sp. 9. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from


Armina sp. 9

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