Nudibranch
Fig. 27: This type of nudibranch is very common around Fij and about 2cm in size. This one here probably got bitten by a fish. Tetons 1, Fiji. — EXIF: Nikon D200; Δt=1/250 s; f=105 mm; f/16.0; ISO 100; 2010-08-09 0:34:00