Photograph taken by Brian Mayes taken in Bali, Indonesia
Comment from the photographer: From the presence of yellow papillae on the oral veil, it indicates this is Armina cf. comta (Bergh, 1880) per page 305 of Indo-Pacific Nudibranchs and Sea Slugs, by Gosliner et al.
Location: Pura Jati, Depth: 6m
"The tropical western Pacific species is characterised by the black body, white summits to the longitudinal ridges, black rhinophores with white apices and, most especially, by the white (or sometimes creamish yellow) papillae on the oral veil."
Comment from Richard Willan
The tropical western Pacific species is characterised by the black body, white summits to the longitudinal ridges, black rhinophores with white apices and, most especially, by the white (or sometimes creamish yellow) papillae on the oral veil.