Throughout New Zealand to about 20m, but extremely rare intertidally.
Mercury Islands, New Zealand (NE of North Island) in about 6 m. This specimen is about 20 mm long. PHOTO: Ian Skipworth.
This is one of many chromodorids which are white with a yellow border. It is characterised by the yellow median line. Most of the known species of Cadlina are found in the northern hemisphere. C. willani is the only species known from New Zealand. Two species have been reported from southern Australia. One of these, Cadlina nigrobranchiata Rudman, 1985 from southwestern Australia, is also white with a yellow border but it had black gills and rhinophores. The second species, Cadlina tasmanica, from Tasmania is translucent white with scattered milky yellow spots over the mantle.
• Miller, M.C. (1980). Cadlina willani, a new dorid nudibranch (Gastropoda: Opisthobranchia) from New Zealand. New Zealand Journal of Zoology, 7: 165-171.
• Rudman, W.B. (1985) The Chromodorididae (Opisthobranchia: Mollusca) of the Indo-West
Pacific: Chromodoris aureomarginata, C. verrieri and C. fidelis colour groups. Zoological Journal of the Linnean Society 83:241-299.
• Rudman, W.B. (1990) The Chromodorididae Opisthobranchia: Mollusca) of the Indo-West Pacific: further species of Glossodoris, Thorunna and the Chromodoris aureomarginata colour group. Zoological Journal of the Linnean Society, 100(3):
(Visit Skip's Underwater Image Gallery for further of Ian Skipworth's photos of New Zealand Underwater Life.)Authorship details
Rudman, W.B., 1998 (January 20) Cadlina willani Miller, 1980. [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/cadlwill
December 30, 2006
From: Samuel Kemp
Could you identify this specimen for me? I photographed it off Great Barrier Island, off the east coast of New Zealand (N.Island)in about 15m of water. Unfortunately I have not managed to include the rhinophores, and the gills have been retracted.
Locality: Great Barrier Island, 15 meters, East coast North Island, New Zealand, Pacific Ocean, 16th December 2006. Length: 3-4 cm. Photographer: Samuel Kemp.
firstname.lastname@example.orgKemp, S., 2006 (Dec 30) Cadlina willani from nthn New Zealand. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/19069
This is Cadlina willani. Fortunately its very distinctive colour pattern meant I didn't need to see the head end to identify it
March 1, 2003
From: Mark Burnett
I notice there is only one picture of Cadlina willani on the Forum so thought I'd send a few more. Interestingly, I had these pictures for a few years before I was able to ID them from Ian Skipworth's picture on the Forum.
The two pictures on the right were taken at Blue Maomao Arch (Poor Knights Is) at a depth of 12 metres in September '98. The lower left one was taken at Jones Beach in Tawharanui National Park (near Leigh) at a depth of 10 metres. All were around 20mm.
There are very few photos of this striking species publicly available, so these are very welcome
January 20, 1999
From: Ian Skipworth
Good to see the Janolus mokohinau image posted on your site.
The attached image of Cadlina willani was taken by me at the Mercury Islands, New Zealand (NE of North Island) in about 6 m of water. This specimen is about 20 mm long.
Auckland, New Zealand
Skip's Underwater Image Gallery
email@example.comSkipworth, I., 1999 (Jan 20) Cadlina willani from New Zealand. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/504
I look forward to some more New Zealand species.