Abnormality in Nembrotha purpureolineata

March 26, 2008
From: Leanne & David Atkinson


Dear Bill,
We have come across this Nembrotha purpureolineata [formerly N. rutilans] on two dives at The Pipeline recently. It has a trifurcate rhinophore and damaged gills. It seems to be surviving quite nicely finding plenty of yellow lined ascidians to feed on. You didn't have a trifurcate rhinophore on the abnormalities page and this is the first time in over twenty years of diving we have seen this. It seems an appropriate abnormality as one of Neptune's creatures to have a trident shaped rhinophore. Thanks for your interesting work on the SeaSlug Forum we enjoy reading your daily postings and suffer withdrawals evrytime you stop for a while. Hope you had time to finish your projects.

Locality: The Pipeline, Neslon Bay, Port Stephens, 8 metres, New South Wales, Australia, Pacific Ocean, 20 October 2007 & 27 October 2007, Sitly sandy bottom, with scattered ascidians, kelp, algae, seaweed sponges, gorgonians, bryozoans and soft corals. Length: approximately 90 mm. Photographer: Leanne & David Atkinson.

Best wishes,
Leanne & David Atkinson

atk@hunterlink.net.au

Atkinson, L. & D., 2008 (Mar 26) Abnormality in Nembrotha purpureolineata. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/21059

Dear Leanne & David,

Thanks for this. By chance we have a record of Nembrotha kubaryana with a similar trifid rhinophore [message #16715]. Maybe Neptune has a liking for Nembrotha.  Your animal also seems to have damage to its gills, the back ones apparently having been bitten off by some predator. I note in the photo alongside, that the Nembrotha is feeding on an ascidian.  I guess it is the yellow-lined ascidian, Clavelina meridionalis which you reported on earlier [#15797]. For those of you not familiar with the way Nembrotha feeds, the slugs has inserted it white oral tube [proboscis] into the transparent tube of the ascidian, to eat the brownish body parts.

Best wishes,
Bill Rudman

Rudman, W.B., 2008 (Mar 26). Comment on Abnormality in Nembrotha purpureolineata by Leanne & David Atkinson. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/21059

Related messages

  1. Nembrotha purpureolineata and caprellids
    From: Valda Fraser, February 17, 2009
  2. Nembrotha purpureolineata laying eggs
    From: Leanne & David Atkinson, March 4, 2008
  3. Nembrotha rutilans mating in Raja Ampat
    From: Bob Whorton, June 5, 2007
  4. Nembrotha rutilans? from Indonesia
    From: Aaron Fink, March 5, 2007
  5. Nembrotha rutilans mating from Lembeh Strait
    From: Mike Krampf, December 5, 2006
  6. Nembrotha rutilans - feeding observations
    From: L. & D. Atkinson, February 15, 2006
  7. Nembrotha purpureolineata or purpureolineolata?
    From: Roberto Sozzani, February 10, 2006
  8. Nembrotha rutilans - colour variation
    From: Bruce Potter, February 8, 2006
  9. Nembrotha rutilans laying eggs
    From: Leanne & David Atkinson, February 6, 2006
  10. Nembrotha rutilans laying eggs - some more details
    From: Roberto Sozzani, June 24, 2005
  11. Nembrotha rutilans eating tunicate
    From: Bob Whorton, June 9, 2005
  12. Re: Nembrotha rutilans mating
    From: Roberto Sozzani, May 11, 2005
  13. Nembrotha rutilans mating
    From: Roberto Sozzani, May 5, 2005
  14. Nembrotha rutilans mating
    From: Dana Africa, January 30, 2004
  15. Nembrotha rutilans on the Great Barrier Reef
    From: Paul Osmond, January 8, 2004
  16. Nembrotha rutilans from Bali?
    From: Jukka-Pekka Salmenkaita, August 29, 2003
  17. re: Nembrotha rutilans at Fly Point
    From: Dave Harasti, April 25, 2003
  18. Nembrotha rutilans from Nelson Bay, Australia
    From: Dave Harasti, April 19, 2003
  19. Nembrotha rutilans from Sydney
    From: Paul Selwood, January 24, 2003
  20. Nembrotha rutilans juvenile feeding
    From: Danny Van Belle, January 17, 2003
  21. Nembrotha rutilans from Nelson Bay
    From: Allan Saben, January 15, 2003
  22. Nembrotha rutilans from Borneo
    From: Mark Burnett, December 31, 2002
  23. Nembrotha rutilans feeding
    From: Sabine Noack, November 1, 2002
  24. Juvenile? Nembrotha from North Sulawesi
    From: Marli Wakeling, October 6, 2002
  25. Nembrotha rutilans? from Malaysia
    From: Richard Houghton, September 16, 2002
  26. Nembrotha rutilans feeding
    From: Mary Jane Adams, May 11, 2002
  27. Nembrotha rutilans feeding
    From: Mary Jane Adams , September 20, 2001
  28. Nembrotha rutilans from Mozambique
    From: Valda Fraser, May 4, 2001
  29. Re: Nembrotha rutilans
    From: Jeremy Rose, September 23, 2000
  30. Nembrotha rutilans from Sydney
    From: A. Lumnitzer & D. Piotrowska, September 21, 2000
  31. Nembrotha rutilans in aquarium
    From: Jeremy Rose, September 19, 2000
  32. Nembrotha rutilans feeding
    From: David & Leanne Atkinson, January 22, 2000
  33. Nembrotha rutilans from Port Stephens
    From: Grey McNeil, July 14, 1999
  34. Nembrotha rutilans
    From: Bill Rudman, July 2, 1999
  35. Nembrotha rutilans mating
    From: David & Leanne Atkinson, April 15, 1999

Show factsheet and all related messages