Carlson & Hoff, 1993
Known only from the original description from Guam.
UPPER: 48mm; Guam, Anae Is; March 1991. leg. Peter Schupp. LOWER: this is either a 32mm specimen from Agat, or a 41mm specimen from Bile Bay; March 1969. PHOTOS: C. Carlson & P.J.Hoff.
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Translucent white with orange-edged ridges and an opaque white mantle border. There can be orange marks between the ridges. Translucent white gills and rhinophores have large scattered black spots.
• Carlson, C.H. & Hoff, P.J. (1993) Three new Halgerda species (Doridoidea: Nudibranchia: Opisthobranchia) from Guam. The Veliger, 36(1): 16-26.
Rudman, W.B., 2000 (March 14) Halgerda guahan Carlson & Hoff, 1993. [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/factsheet/halgguah
Halgerda guahan & H. johnsonorum - mating pair
From: Harry Blalock, September 17, 2007
Halgerda guahan - a weekend of mating
From: Harry Blalock, July 28, 2007
Re: Mating Halgerda guahan from nthn Mariana Islands
From: Harry Blalock, May 23, 2007
Re: Mating Halgerda guahan from nthn Mariana Island
From: Greg Moretti, March 6, 2007
Mating Halgerda guahan from nthn Mariana Islands
From: Yuji Fujie, January 22, 2007
Photos of Halgerda guahan
From: C. Carlson & P.J. Hoff, March 20, 2000