Dermatobranchus cymatilis is a species of sea slug, a nudibranch, a marine gastropod mollusc in the family Arminidae.Bouchet, P. (2015). Dermatobranchus cymatilis. In: MolluscaBase (2015). Accessed through: World Register of Marine Species on 2015-09-30
Distribution This species was described from Okinawa, Japan. It has been reported from the Philippines.Gosliner, T.M., Behrens, D.W. & Valdés, Á., 2018. Nudibranch and Sea Slug Identification - Indo-Pacific. New World Publications; 2nd Revised, Updated edition. 452 pp. , p. 238
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