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Melibe engeli  Risbec, 1937

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Melibe engeli is easily recognizable because it is the only known translucent Melibe. The body and cerata are translucent greenish yellow, with numerous small papillae, the digestive gland duct is well visible in the median part of each ceras, some internal organs are visible through the body.
This species was posted on 21 June 2005 at these websites as Melibe engeli  Risbec, 1937.
Richard Willan wrote: "This species of Melibe has recently been redescribed and the name established as Melibe rangii by Nathalie Yonow in her book on the sea slugs of the Red Sea."
I changed it on 8 October 2011 into Melibe rangii  Bergh, 1875.
In their recent publication list Gosliner & Pola (2012) Melibe engeli  Risbec, 1937 as "distinct and recognizable",
they suggest that Melibe rangi  Bergh, 1875 is "most likely a synonym of M. viridis".
Reference:
Terrence Gosliner & Marta Pola (2012): Diversification of filter-feeding nudibranchs: two remarkable new species of Melibe (Opisthobranchia: Tethyiidae) from the tropical western Pacific, Systematics and Biodiversity, Volume 10, Issue 3, 2012 , pages 333-349
online available at: http://www.tandfonline.com/doi/abs/10.1080/14772000.2012.717551
I changed it back into Melibe engeli  Risbec, 1937 on 12 October 2012
The most unique attribute of the genus Melibe and so of Melibe engeli is their method of feeding. They have no radular teeth and but have developed the oral veil into a large veil or "fish net" which they use to constantly scan the substrate as they crawl along. When the sensitive papillae on the inner edge of the oral veil touch a small crab or crustacean the edge of the veil is rapidly contracted, trapping the prey, which is then ingested.
More information on Melibe engeli are on Bill Rudman's Sea-Slug Forum!
How to cite:
Köhler, E. (2016), published 7 December 2016, Melibe engeli  Risbec, 1937
available from https://www.Philippine-Sea-Slugs.com/Nudibranchia/Dexiarchia/Melibe_engeli.htm