Hoff & Carlson, 1990
Previously known only from the Mariana Islands, but reported below from Sulawesi, Indonesia.
UPPER: 3.3mm; Guam, Bile, boat channel; 27 April 1990. LOWER: 3.2mm; Guam, Cocos Lagoon; 6 November 1971
PHOTOS: Clay Carlson.
This species was reported by Hoff & Carlson to be quite variable in colour, two extremes being illustrated here. They record over 700 specimens from the Mariana Island chain, the largest being 4.2mm long, but were unable to find it south of the island of Guam. See Lindsay Warren's message below, for a record from Indonesia.
• Hoff, PJ. & Carlson, CH. (1990). A new Runcinacea from the Mariana Islands (Gastropoda: Opisthobranchia). Venus, Japanese Journal of Malacology, 48(4): 263-269.
Rudman, W.B., 1999 (March 23) Ilbia mariana Hoff & Carlson, 1990. [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/factsheet/ilbimari
Ilbia mariana in an ascidian
From: Yuji Fujie, July 22, 2006
Re: A juvenile Ilbia mariana ?
From: Clay Carlson, April 3, 2006
A juvenile Ilbia mariana ?
From: Yukari Tani, April 3, 2006
llbia mariana from Northern Mariana Islands
From: Takao Uraswa, April 1, 2006
Ilbia mariana from the Marshall Islands
From: Scott Johnson, December 3, 2001
'runcinid' from Sulawesi, Indonesia
From: Lindsay Warren, March 23, 1999
Sulawesi runcinid is Ilbia mariana
From: Clay Carlson, March 23, 1999