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Gosliner, Terrence M., David W. Behrens & Ángel Valdés. 2008. Indo-Pacific Nudibranchs and Sea Slugs. Sea Challengers Natural History Books.
Gig Harbor, Washington. 426 pp.
There are some excellent pictures of it from the Marshall Islands, and there is a detailled description of it at the OKINAWA SLUG SITE.
How to cite:
Köhler, E. (2016), published 24 May 2016, Polycera risbeci Odhner, 1941
available from http://www.Philippine-Sea-Slugs.com/Nudibranchia/Euctenidiacea/Polycera_risbeci.htm