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Thorunna halourga
Johnson & Gosliner, 2001
DISTRIBUTION
Tropical western Pacific - sthn Japan, Philippines, Marshall Ids, Papua New Guinea, eastern Australia
PHOTO
Anilao, Luzon Island, Philippines, April, 2002. Approx 7mm long. Photo: Jeff Rosenfeld.
This is another small species in the Noumea purpurea colour group growing to about 12 mm long. The mantle is a pale lilac becoming purple in front of the rhinophores and behind the gills. The mantle margin, which is slightly undulate, has a broad white band. The rhinophores have a purple stalk and the lamellae are edged with orange. The gills are white with orange axes. Because of its similarity in colour to other species it is difficult to be sure of identifying records from colour photos alone, but it appears to have been found in Papua New Guinea, the Philippines, and tropical eastern Australia.
References:
• Johnson, R.F. & Gosliner, T.M. 2001. Two new species of Thorunna Bergh 1878 (Mollusca: Nudibranchia: Chromodorididae) from the Indo-Pacific. Bollettino Malacologico ,37(5-8): 143-150.
• Marshall, J.G. & Willan, R.C. 1999. Nudibranchs of Heron Island, Great Barrier Reef: a survey of the Opisthobranchia (Sea Slugs) of Heron and Wistari Reefs. Leiden, Backhuys Publishers. [as Thorunna sp. 1]
Rudman, W.B., 2002 (December 11) Thorunna halourga Johnson & Gosliner, 2001. [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/factsheet/thorhalo
Related messages
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Re: On the Noumea purpurea Colour Group
From: N.Barbara Hanchard, March 5, 2009 -
Re: On the Noumea purpurea Colour Group
From: Gary Cobb, February 27, 2009 -
Re: On the Noumea purpurea Colour Group
From: Scott Johnson, February 27, 2009 -
Re: On the Noumea purpurea Colour Group
From: N. Barbara Hanchard, February 26, 2009 -
Thorunna halourga from Japan.
From: Kunihiro Takahashi, February 19, 2004 -
Thorunna halourga from Philippines
From: Jeff Rosenfeld, January 20, 2003 -
Re: Thorunna halourga from Philippines
From: Scott Johnson, January 20, 2003 -
Thorunna from Heron Island
From: Julie Marshall, July 12, 2001 -
Re: Thorunna? cf. speciosus
From: Rebecca Johnson, July 7, 2001 -
Hypselodoris bullocki or Noumea sp.?
From: Yasuhiro Shirai, July 3, 2001 -
Thorunna cf. speciosus
From: Scott Johnson, June 12, 2000 -
Thorunna cf speciosus? from Japan
From: Atsushi Ono, June 9, 2000