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Philinopsis speciosa is a widespread Indo-West Pacific species which has been identified in most places as Philinopsis cyanea, it was also posted on 9 July 2003 at these pages as Philinopsis cyanea. Because Philinopsis speciosa is the older name, as well as the type of the genus, I replaced on 21 September 2008 the more commonly used Philinopsis cyanea by
Philinopsis speciosa Pease, 1860.
Very similar, also very variable in colour and markings is the Mediterranean Sea and Atlantic Ocean species Philinopsis depicta (Renier, 1807).
More information on Philinopsis speciosa are on Bill Rudman's Sea Slug Forum!
How to cite:
Köhler, E. (2016), published 4 July 2016, Philinopsis speciosa Pease, 1860
available from http://www.Philippine-Sea-Slugs.com/Cephalaspidea/Philinopsis_speciosa.htm