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The specimen #5 was misidentified by David W. Behrens as Thordisa oliva Chan & Gosliner, 2007.
That is the reason why this species which was posted on 17 September 2010 at these websites a Discodorididae sp. A Family: Bergh, 1891 had been changed on 8 September 2011 into Thordisa oliva Chan & Gosliner, 2007.
Thordisa cf. oliva differs in several points from Thordisa oliva: all tubercles are of the same colour as the mantle, not tan, the papillae are clear/ translucent, not tan. In most specimens are the rhinophores and gills tan, not opaque white, only specimen #5 has opaque white rhinophores and gills.
IPN writes on Thordisa oliva at page 171: "Known from tropical South Africa and the Kerama Islands of southern Japan."
The type locality of Thordisa oliva Chan & Gosliner, 2007 is Sodwana Bay, South Africa, I doubt the records from Japan.
I changed it on 15 November 2019 into Thordisa cf. oliva Chan & Gosliner, 2007.
Gosliner, Terrence M., David W. Behrens & Ángel Valdés. 2008. Indo-Pacific Nudibranchs and Sea Slugs.
Sea Challengers Natural History Books. Gig Harbor, Washington. 426pp.
Chan, J. M.; Gosliner, T. M. (2007). Preliminary phylogeny of Thordisa (Nudibranchia: Discodorididae) with descriptions of five new species.
The Veliger. 48(4): 284 - 308. available online at http://biodiversitylibrary.org/page/50502455
How to cite:
Köhler, E. (2019), published 15 November 2019, Thordisa cf. oliva Chan & Gosliner, 2007
available from https://www.Philippine-Sea-Slugs.com/Nudibranchia/Doridina/Thordisa_oliva.htm