Neon slug
Fig. 70: This nudibranch is called neon slug or dusky nembrotha (lat. nembrotha kubaryana). Dive #361: Sinandigan Wall, Sabang, Mindoro Island, Philippines — EXIF: Nikon D200; Δt=1/250 s; f=105 mm; f/16.0; ISO 100; 2009-11-12 2:22:34