Stiliger sp. 01  Genus: Ehrenberg, 1831

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Stiliger sp. 01 is listed as Costasiella? sp. 2 in the Sea Slug Forum, the '?' indicates that the generic placement was doubtful...
it is as Stiliger sp. 1 in IPN at page 74, and as Stiliger sp. 2 in Gosliner et al. (2015)IPN at page 76.
Stiliger sp. 01 is characterised by having its eyes relatively close together, and by its transparent cerata with a dark/black digestive gland and subapical orange spots, the apex is blueish-white. The rhinophores are basal transparent then blueish-white. The maximal reported size is 8 mm.
It was posted on 17 December 2010 at these websites as Stiliger sp. A  Genus: Ehrenberg, 1831,
and on 15 August 2011 changed into Stiliger sp. 01  Genus: Ehrenberg, 1831.
For some genera, such as Trinchesia was the alphabet almost through. I had to change the distinguishing alphabetic character into a number. I had chosen 2-digit numbers, even though '01' looks a little bit stupid, and now is only the genus italic written.
The sacoglossa expert Kathe R. Jensen still considers this species to be a Costasiella.(Pers. comment on 17 June 2018).
Gosliner, Terrence M., David W. Behrens & Ángel Valdés. 2008. Indo-Pacific Nudibranchs and Sea Slugs. Sea Challengers Natural History Books. Gig Harbor, Washington. 426pp.
Gosliner, T.M, D.W. Behrens & Á.Valdés. 2015. Nudibranch & Sea Slug Identification Indo-Pacific.
New World Publications Inc. Jacksonville, FL. 408 pp.
More information on Stiliger sp. 01 as Costasiella? sp. 2 are on Bill Rudman's Sea Slug Forum!
How to cite:
Köhler, E. (2020), published 16 October 2020, Stiliger sp. 01  Genus: Ehrenberg, 1831
available from http://www.Philippine-Sea-Slugs.com/Sacoglossa/Stiliger_sp_01.htm


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