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Elysia obtusa

Jeffrey Ikin (2014)


Fact Sheet



Physical Description


Life History & Behaviour

Anatomy & Physiology

Evolution & Systematics

Biogeographic Distribution

Conservation & Threats

References & Links

References & Links

Reference List
Becerro, MA, Goetz, G, Paul, VJ & Scheuer, PJ 2001, 'Chemical Defenses of the Sacoglossan Mollusk Elysia rufescens and its host alga Bryopsis sp.', Journal of Chemical Ecology, vol. 27, no. 11, pp. 2287-2299.

Behrens, DW 2007, Nudibranch Behaviour, New World Publications Inc., Jacksonville, Florida, USA. 

Brandley, BK 1984, 'Aspects of the Ecology and Physiology of Elysia CF. Furvacauda (Mollusca: Sacoglossa)', Bulletin of Marine Science, vol. 34, no. 2, pp. 207-219.

Clark, KB 1994, 'Ascoglossan (=sacoglossa) molluscs in the Florida Keys: rare marine invertebrates at special risk', Bulletin of Marine Science, vol. 54, no. 3, pp. 900-916. 

Cobb, G & Mullins D 2014, Nudibranch Species List/Family Descriptions, viewed 4 June 2014, 

Evertsen, J, Burghardt, I, Johnsen, G & Wägele, H 2007, 'Retention of functional chloroplasts in some sacoglossans from the Indo-Pacific and Mediterranean', Marine Biology, vol. 151, pp. 2159-2166.

Global Biodiversity Information Facility 2014, Elysia obtusa Occurrence Overview, viewed 4 June 2014, <>

Jensen, KR 1992, 'Anatomy of some Indo-Pacific Elysiidae (Opisthobranchia: Sacoglossa (=Ascoglossa)), with a discussion of the generic division and phylogeny', Journal of Molluscan Studies, vol. 58, no. 3, pp. 257-296.

Jensen, KR 1994, 'Behavioural adaptations and diet specificity of sacoglossan opisthobranchs', Ethology Ecology & Evolution, vol. 6, no. 1, pp. 87-101.

Jensen, KR 1997, 'Evolution of the Sacoglossa (Mollusca, Opisthobranchia) and the ecological associations with their food plants', Evolutionary Ecology, vol. 11, pp. 301-335. 

Jensen, K.R. 2003, 'Distributions, diets and reproduction of Hong Kong sacoglossa (Mollusca: Opisthobranchia): a summary of date, 1980-2001 in Perspectives on Marine Environment Change in Hong Kong and Southern China, 1977-2001', Proceedings of an International Workshop Reunion Conference, Hong Kong 21-26 October, 2001, Hong Kong University Press. 

Klochkova, TA, Han, JW, Chah, KH, Kim, RW, Kim, JH, Kim, KY & Kim, GH 2013, 'Morphology, molecular phylogeny and photosynthetic activity of the sacoglossan mollusc, Elysia nigrocapitata, from Korea', Marine Biology, vol. 160, pp. 155-168. 

Maeda, T, Kajita, T, Maruyama, T & Hirano, Y 2010, 'Molecular Phylogeny of the Sacoglossa, With a Discussion of Gain and Loss of Kleptoplasty in the evolution of the group', Biological Bulletin, vol. 219, pp. 17-26. 

Vieira, S, Calado, R, Coelho, H & Serodio, J 2009, 'Effects of light exposure on the retention of kleptoplastic photosynthetic activity in the sacoglossan mollusc Elysia viridis', Marine Biology, vol. 156, pp. 1007-1020. 

Williams, SI & Walker, DI 1999, 'Mesoherbivore-macroalgal interactions: feeding ecology of sacoglossan sea slugs (Mollusca, Opisthobranchia) and their effects on their food algae', Oceanography and Marine Biology An Annual Review, vol. 37, pp. 87-128. 

Useful Links
There are a number of useful websites not included in the reference list that expand on particular aspects of Sacoglossan opisthobranchs, such as:

World Register of Marine Species (WoRMS), which provides an in-depth taxonomic tree.

The Sea Slug Forum, which provides descriptive information on a wide range of sea slugs and is run by the Australian Museum. 

LifeDesks, which provides a general overview of some species.