Elysia ornata
(Swainson, 1840)

Superfamily: ELYSIOIDEA
Family: Elysiidae


Circum-tropical: Caribbean and Indo-West Pacific.


UPPER: Koumac Beach (=Baie de Ouanap), near Koumac, New Caledonia, mixed soft and hard substrate, grassbeds, algae, October 1993, 37mm long alive.
LOWER: Pointe de Pandop, near Koumac, New Caledonia, intertidal, October 1993, 14mm long.PHOTOS: Bill Rudman.

Elysia ornata was originally described from the Caribbean. Recent anatomical studies suggest that Elysia marginata (Pease, 1871) from the Indo-West Pacific is the same species. The animal is usually a translucent green colour with a black parapodial margin and a submarginal yellow or orange band. Sometimes there is a white line between the orange and yellow bands. The tip of the rhinophores often have the same colour bands. There are also numerous black and white dots all over the body. A very similarly coloured species, from the Indo-West Pacific, Elysia grandifolia, has much larger, very thin parapodia. Jensen (1992) reports that E. ornata feeds on Bryopsis in both the Caribbean and the Indo West Pacific.

See Kathe Jensen's message for a discussion on the taxonomy confusion surrounding this and similarly coloured species.

• Jensen, K.R. (1992) Anatomy of some Indo-Pacific Elysiidae (Opisthobranchia: Sacoglossa (=Ascoglossa), with a discussion of the generic division and phylogeny. Journal of Molluscan Studies, 58(3): 257-296.

Authorship details
Rudman, W.B., 1999 (November 4) Elysia ornata (Swainson, 1840). [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/factsheet/elysorna

Related messages

  1. Re: Elysia ornata from French Polynesia
    From: Cynthia D. Trowbridge, January 15, 2009
  2. Elysia ornata from Carriacou in the Caribbean
    From: Brian Mayes, December 11, 2008
  3. Mating Elysia ornata from Florida
    From: Linda Ianniello, August 8, 2008
  4. Mating Elysia ornata from nthn Mariana Islands
    From: Yuji Fujie, February 15, 2008
  5. Elysia thompsoni? - Fremantle, Western Australia
    From: Brent Murdoch, June 28, 2007
  6. Elysia ornata? from Lembeh Strait
    From: Mike Krampf, May 31, 2007
  7. Elysia ornata? from Bali
    From: Kevin Lee, July 13, 2006
  8. Elysia ornata from Reunion island
    From: Philibert Bidgrain, June 22, 2006
  9. Elysia from Dubai
    From: Mike Arora, March 31, 2006
  10. Re: Elysia ornata from St. Vincent
    From: Roberto Sozzani, October 25, 2005
  11. Elysia ornata from St. Vincent
    From: Les Wilk, October 21, 2005
  12. Elysia ornata from South China Sea
    From: Jimmy Goh, May 9, 2005
  13. Elysia ornata or E. grandifolia ?
    From: Marli Wakeling, February 23, 2005
  14. First record of Elysia ornata from Eilat, Red Sea
    From: Jacob Dafni, January 28, 2005
  15. Elysia ornata from Bahamas
    From: Marina Poddubetskaia, March 4, 2004
  16. Elysia ornata from Malaysia (Mabul)
    From: Harro Quitzau, July 12, 2003
  17. Elysia ornata from Batam, Indonesia
    From: Alice Lee, June 23, 2003
  18. Re: Elysia ornata from Indonesia
    From: Kathe R. Jensen, May 21, 2003
  19. Elysia ornata from Indonesia
    From: Danny Van Belle, May 17, 2003
  20. Elysia ornata from Myanmar
    From: Mary Jane Adams, April 1, 2003
  21. Elysia ornata from Tufi, Papua New Guinea
    From: Dave Harasti, March 12, 2003
  22. Elysia ornata from Tufi wharf , PNG (2)
    From: Dave Harasti, March 12, 2003
  23. Elysia ornata from Chek Jawa, Singapore
    From: Ria Tan, February 4, 2003
  24. Elysia ornata from South Korea
    From: Dong Bum, Koh, November 30, 2002
  25. Elysia ornata from nthn New South Wales
    From: John Pogonoski , August 16, 2002
  26. Deformed Elysia ornata from Japan
    From: Jun Imamoto, July 9, 2002
  27. Elysia ornata from Taiwan
    From: Todd Garthwaite, July 4, 2002
  28. Elysia ornata from Florida
    From: Linda Ianniello, March 14, 2002
  29. Elysia ornata? from Queensland
    From: Jo Endersbee, December 3, 2001
  30. Elysia ornata and an octopus
    From: Bruce Potter, November 13, 2001
  31. Elysia ornata from the Line Islands
    From: Cory Pittman, October 26, 2001
  32. Elysia ornata from Sulawesi
    From: Mary Jane Adams , August 29, 2001
  33. Elysia ornata from Japan
    From: Nishina Masayoshi, August 19, 2001
  34. Elysia ornata from Saudi Arabia
    From: John Chuk, August 1, 2001
  35. Elysia ornata from American Samoa
    From: Don Barclay, July 21, 2001
  36. Elysia ornata from Papua New Guinea
    From: Mary Jane Adams , July 21, 2001
  37. Re: Elysia sp. 11 from Sulawesi
    From: Kathe R. Jensen, June 28, 2001
  38. Elysia sp. 11 from Sulawesi
    From: Lindsay Warren , June 26, 2001
  39. Elysia sp. 11? from the Philippines
    From: Erwin Koehler, June 18, 2001
  40. Elysia from American Samoa
    From: Don Barclay, April 3, 2001
  41. Elysia ornata from French Polynesia
    From: Daniel L. Geiger, December 21, 2000
  42. Elysia ornata from the Philippines
    From: Erwin Koehler, November 6, 1999
  43. Elysia ornata from Queensland
    From: Tim Murrell, November 5, 1999

Show factsheet and all related messages