Tridachia v Elysia crispata

December 7, 1999
From: David W. Behrens

Note added 30 May 2006: This is may be Elysia clarki, a new species which was previously considered a colour form of E. crispata. I cannot tell whether there is a gap between the parapodia in the anterior midline, which is a character of the new speciees - Bill Rudman.

Dear Bill:

May I bring to you and your readers attention the collection of Elysia
crispata photographs on Mike Miller's Site - Nudibranch of the Week #156.

The red lined variation Anne submitted has been the norm for several years in Roatan, Bay Islands, Honduras. Very common. The green mantle aggregations of photosynthetic material in my specimens were absolutely iridescent. They seemed to sparkle and jump right off the tissue at you. I will try to find a photo for you.

Jeff Hamann's mangrove specimen (from Belize), shown here and linked to Mike's page is particularly interesting.

Such an interesting and variable species.

David W. Behrens

dave@seachallengers.com

Behrens, D. W., 1999 (Dec 7) Tridachia v Elysia crispata. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/1656

Dear Dave (& Jeff),

Thanks for the mangrove variety photo. This species does show amazing variety in colour. On reflection I guess I should have placed this species in Elysia rather than persevering with Tridachia. I have changed the species information at the Top of the Page, to follow Gosliner's review (1995) in which Tridachia is considered a synonym of Elysia.

Best wishes,
Bill Rudman.

Reference: Gosliner, T.M. (1995) The Genus Thuridilla (Opisthobranchia: Elysiidae) from the Tropical Indo-Pacific, with a Revision of the Phylogeny and Systematics of the Elysiidae. Proceedings of the Californian Academy of Sciences, 49(1):1-54.

Rudman, W.B., 1999 (Dec 7). Comment on Tridachia v Elysia crispata by David W. Behrens. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/1656

Factsheet

Elysia crispata

Related messages

  1. Lettuce slug behaviour
    From: Bob Bailey, March 26, 2010
  2. Two Elysia crispata from Saba, Windward Islands
    From: Eric Kaye, March 26, 2010
  3. Colour variations of Elysia crispata from Guadeloupe [2]
    From: Hugues Flodrops, November 21, 2007
  4. Colour variations of Elysia crispata from Guadeloupe [1]
    From: Hugues Flodrops, November 21, 2007
  5. Elysia with a ripped body
    From: Patrick, October 4, 2007
  6. Location of Elysia crispata - and other slugs?
    From: Paul Jones, September 22, 2007
  7. Elysia crispata? from Cuba
    From: Simon Crawford, March 23, 2007
  8. Re: Update on Elysia crispata feeding
    From: Andrew Rodenbeck, August 30, 2006
  9. Damaged Elysia crispata
    From: D. Rose, August 28, 2006
  10. Re: Update on Elysia crispata feeding
    From: Colin Finney, May 6, 2005
  11. Re: Update on Elysia crispata feeding
    From: Skip Pierce, May 4, 2005
  12. Re: Update on Elysia crispata feeding
    From: Kathe R. Jensen, May 2, 2005
  13. Re: Update on Elysia crispata feeding
    From: Lindsey Holm, May 2, 2005
  14. Elysia crispata - Here's a puzzle
    From: Skip Pierce, January 4, 2005
  15. Update on Elysia crispata feeding
    From: Skip Pierce, August 6, 2004
  16. Re: Elysia crispata feeding
    From: Pszemol, July 16, 2004
  17. Re: Elysia feeding
    From: Skip Pierce, March 1, 2004
  18. Re: Elysia feeding
    From: Kathe R. Jensen, February 27, 2004
  19. Elysia feeding
    From: Skip Pierce, February 26, 2004
  20. Elysia crispata - breeding in aquarium
    From: Paul Baldassano, January 9, 2004
  21. Elysia crispata from Jamaica
    From: Ross W. Gundersen, October 10, 2003
  22. Elysia crispata from Colombia
    From: Ana Karina Yepes, October 1, 2003
  23. Elysia crispata from Bonaire
    From: Robert Fishman, September 11, 2003
  24. Light color form of Elysia crispata
    From: Linda Ianniello, July 21, 2003
  25. Chloroplasts in Elysia crispata
    From: Skip Pierce, June 30, 2003
  26. More on Elysia crispata - feeding, DNA etc
    From: Skip Pierce, May 8, 2003
  27. Re: Elysia crispata and algal genes
    From: Kathe R. Jensen, May 5, 2003
  28. Elysia crispata research
    From: Dirk Trauner , March 11, 2003
  29. Elysia crispata toxicity..
    From: Ken Woden, September 17, 2002
  30. Re: Elysia crispata question...
    From: Matt Galvin, December 18, 2001
  31. Elysia crispata question...
    From: Rich Hunziker , December 12, 2001
  32. Re: Advice of keeping Elysia crispata in captivity
    From: Kathe R. Jensen, October 9, 2001
  33. Re: Elysia crispata
    From: Anne DuPont, October 9, 2001
  34. Chloroplasts in the 'lettuce leaf nudibranch'
    From: Caroline Nelson, October 8, 2001
  35. Re: Advice of keeping Elysia in captivity
    From: Claude Poole, September 24, 2001
  36. I need some Bryopsis
    From: Kathleen Archer , September 21, 2001
  37. Re: Advice of keeping Elysia in captivity
    From: Kathe R. Jensen, September 17, 2001
  38. Advice of keeping Elysia in captivity
    From: Kathleen Archer , September 15, 2001
  39. Elysia crispata from Colombia
    From: Alexander Taborda Marin, June 16, 2001
  40. Keeping Elysia crispata in aquaria
    From: Alan Pittman, February 26, 2001
  41. Elysia crispata in aquaria
    From: Ryan, January 29, 2001
  42. What is a Lettuce Nudibranch
    From: Mike Dean, October 30, 2000
  43. Elysia crispata v Tridachia crispata
    From: Kathe R. Jensen, October 17, 2000
  44. Re: Elysia crispata - egg coil
    From: Kathe R. Jensen, October 15, 2000
  45. Elysia crispata - egg coil
    From: John Batson, October 6, 2000
  46. Re: Lettuce Slug
    From: Jonathan Laxton, August 3, 2000
  47. What is a lettuce slug? help please......!
    From: Jonathan LAxton, July 28, 2000
  48. Elysia crispata & photosynthesis
    From: Dave Behrens, December 10, 1999
  49. Photos of the solar-powered 'Ruffled Sea Slug'
    From: Anne DuPont, December 7, 1999
  50. Red-lined form of Tridachia crispata
    From: Anne Dupont, December 7, 1999

Show factsheet and all related messages