Hypselodoris apolegma reaches 7 cm. Indo-Pacific nudibranch (Chromodorididae) with uniformly vivid pink-purple mantle with distinctive yellow-white edges, white-pink gills, red-purple rhinophores. Lives from 5 to 30 m on coral reefs of central and western Indo-Pacific (Indonesia, Philippines, Malaysia). Feeds on sponges. Iconic macro photo subject of Lembeh, Anilao nudi-spotting dives for contrasting vivid colors.
