Dendrodoris nigra colour variation from Reunion Island ?

May 15, 2007
From: Philibert Bidgrain


Dear Bill,
Reunion Island seaslugs

This species is relatively frequent in our island and isvery variable in colour. Reunion Island, Indian Ocean, Intertidal rocky coast

I send you different specimens. I think they are all Dendrodoris nigra....
In specimen 2 do you think that the more important white tips corresponded to milky acidic secretion?

What's your opinion about this identification?

Philibert Bidgrain
http://vieoceane.free.fr/runseaslug/indexslug.htm

pbidgrain@yahoo.fr

Bidgrain, P., 2007 (May 15) Dendrodoris nigra colour variation from Reunion Island ?. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/19586

Dear Philibert,
The upper two animals are D. nigra and the white spots represent regions where there are small single-celled glands which exude a white secretion.

The lower animal has a cup-shaped gill circle somewhat reminiscent of D. nigra, but in this animal the gills are proportionally much smaller. This is a quiet unrelated animal, Actinocyclus verrucosus. It has a much tougher, almost  leathery mantle, and scattered patched of small raised black spots.

Best wishes,
Bill Rudman

Rudman, W.B., 2007 (May 15). Comment on Dendrodoris nigra colour variation from Reunion Island ? by Philibert Bidgrain. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/19586

Factsheet

Dendrodoris nigra

Related messages

  1. Re: Dendrodoris nigra - hitchhiking again
    From: Kevin A Mitchell, March 19, 2010
  2. Re: Dendrodoris nigra from New Zealand
    From: Bill Rudman, October 27, 2009
  3. Dendrodoris nigra? from New Zealand
    From: Graham Bould, October 27, 2009
  4. Re: Big Black Slug in my aquarium
    From: Shelly Craigie, December 4, 2007
  5. Re: Orange form of Dendrodoris nigra from Reunion
    From: Hugues Flodrops, December 4, 2007
  6. Big Black Slug in my aquarium
    From: Shelly Craigie, December 3, 2007
  7. Dendrodoris nigra from the Seychelles Ids
    From: David Barnes, August 25, 2007
  8. Dendrodoris nigra & eggs from Lord Howe Is.
    From: Ian Hutton, February 25, 2004
  9. Dendrodoris nigra (?) from Mayotte
    From: Marina Poddubetskaia, December 3, 2003
  10. Dendrodoris nigra - egg ribbon
    From: Rachel Przeslawski, March 20, 2003
  11. Unknown black sea slug in aquarium
    From: Nate C., February 16, 2003
  12. Dendrodoris nigra - hitchhiking again
    From: Jeff Lord, February 4, 2003
  13. Dendrodoris nigra from Lord Howe Island
    From: W.B. Rudman, January 27, 2003
  14. Solid black nudibranch in aquarium
    From: Jennie, December 18, 2002
  15. Black Slug? in aquarium
    From: Durwin Gin, December 7, 2002
  16. Red form of Dendrodoris nigra
    From: Valda Fraser, June 10, 2002
  17. Dendrodoris nigra from Christmas Island
    From: W.B. Rudman, May 16, 2002
  18. Dendrodoris nigra from Philippines
    From: Jeff Rosenfeld , June 14, 2001
  19. Re: Solid Black Nudibranch
    From: Nathan Paden , April 13, 2001
  20. Solid Black Nudibranch
    From: Nathan Paden, April 11, 2001
  21. Dendrodoris nigra from Saudi Arabia
    From: Gordon T. Smith, February 6, 2001
  22. Dendrodoris nigra feeding
    From: Chris Benson, January 9, 2001
  23. Dendrodoris nigra feeding
    From: J. Kennedy, January 9, 2001
  24. Thanks For Help
    From: Chris Stephens, December 29, 2000
  25. Help to id slug
    From: Chris Stephens, December 28, 2000
  26. Another Samoan nudibranch
    From: Don Barclay, August 29, 2000
  27. Dendrodoris nigra from Sulawesi
    From: Lindsay Warren, July 25, 2000
  28. Dendrodoris nigra from South Africa
    From: Valda Fraser, July 8, 2000
  29. Black nudibranch
    From: Eric Jensen, April 10, 2000
  30. Dendrodoris nigra
    From: katabyss, January 28, 2000
  31. Pages on Dendrodoris nigra & D. fumata
    From: Bill Rudman., August 19, 1999

Show factsheet and all related messages