See message from Michael Schrödl & Timea P. Neusser [#15744 ] which summarises our knowledge of the group and describes their present research.
Information on Tantulum elegans
From: Sarsha Lall, August 31, 2006
Are there freshwater sea slugs?
From: Dave, June 17, 2006
Phylogeny and evolution of acochlidian opisthobranchs
From: M. Schrödl & T. P. Neusser, February 6, 2006