Originally described from Palau, it has a wide Indo-West Pacific distribution from the western Indian Ocean to eastern Australia.
Dar es Salaam, Tanzania, July 1977. PHOTO: Bill Rudman.
Grows to about 45mm long.
• Bergh, L.S.R. (1880). Malacologische Untersuchungen. In: C.G. Semper, Reisen im Archipel der Philippinen, Wissenschaftliche Resultate. Band 2, Suppl. 1: 1-78, Pls. A-F.
Rudman, W.B., 1999 (November 16) Halgerda tessellata (Bergh, 1880). [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/factsheet/halgtess
Halgerda tessellata from Indian Ocean
From: Sandrine Flodrops, March 16, 2009
Re: Halgerda tessellata from sthn Queensland
From: Gary Cobb, November 12, 2008
Halgerda tesselata from Tofo, Mozambique
From: Natasja Vandeperre, August 24, 2007
Halgerda tesselata from the Marianas Ids
From: Takao Urasawa, November 11, 2005
Halgerda tessellata from Mayotte
From: Marina Poddubetskaia, December 9, 2003
Halgerda tessellata from Malaysia
From: Kheong Sann Chan, April 23, 2002
Halgerda tessellata from Exmouth, W.A.
From: Kirk Gibson, April 9, 2001
Halgerda tessellata from Thailand
From: Erwin Koehler, January 23, 2001
Halgerda tessellata variations
From: Scott Johnson, January 4, 2001
Halgerda tessellata in southern Africa
From: Valda Fraser, September 3, 2000
Halgerda tessellata from the Maldives
From: Erwin Koehler, November 17, 1999