May 26, 2006
From: Ian Skipworth
Here's Chelidonura hirundinina from the Kermadecs. I guess it's another one of those slugs which seems a bit exotic for New Zealand waters but is probably quite common in the tropics.
Locality: Raoul Island, Kermadec Islands, 12 m, New Zealand, Pacific Ocean, 19 March 2006, Rocky reef. Length: 12 mm. Photographer: Ian Skipworth.
Skipworth, I.R., 2006 (May 26) Chelidonura hirundinina from the Kermadecs. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/16669
Yes this is indeed a tropical species found in both the Indo-West Pacific and the tropical west Atlantic. It certainly has not been reported from New Zealand 'proper' and as far as I can check it hasn't been reported from the Kermadecs either.
I have added close-ups of both your animals as they show to of the colour variants, the onr on the left simple lines, and the one on the right with spots as well, and the lines broadening into wider patchy bands. Such differences in early days were considered enough to make them different species.
Chelidonura hirundinina from U.S.Virgin Islands
From: Carly Kauffman, September 6, 2007
Navanax inermis or Chelidonura hirundina ?
From: Takao Urasawa, May 28, 2007
Unknown Chelidonura from New Zealand
From: Ian Skipworth, May 24, 2007
Chelidonura hirundinina from the Caribbean
From: Les Wilk, October 18, 2005
Chelidonura hirundinina mating
From: Anne DuPont, August 26, 2005
Mating Chelidonura hirundinina from Hawaii
From: Lyudmila Zinkova , December 23, 2004
Chelidonura hirundinina from Malaysia
From: Asther M. Lau, September 17, 2003
Chelidonura hirundinina from Caribbean
From: Carol Thomas, August 13, 2003
Chelidonura hirundinina from the Bahamas
From: Anne DuPont, April 9, 2003
Chelidonura hirundinina from Lord Howe Island
From: W.B. Rudman, January 6, 2003
Chelidonura hirundinina from Bali
From: Stuart Hutchison, March 11, 2002
Chelidonura chelidonura from Fiji
From: Julian Sprung , February 9, 2002
Chelidonura hirundinina in the Caribbean
From: Anne DuPont, October 18, 2001
Chelidonura hirundinina in the Solomons
From: Bruce Potter, September 24, 2001
Swallowtail sea slug?
From: Robin Adler, September 24, 2001
Re: Chelidonura in Atlantic
From: Joe, September 21, 2001
Chelidonura in Atlantic
From: Ray, May 28, 2001
Chelidonura hirundinina from Solomon Ids
From: Mary Jane Adams, February 7, 2001