Alex Mustard / Portrait of a nudibranch (Hypselodoris infucata) with orange-red rhinophores. Bitung, North Sulawesi, Indonesia. Lembeh Strait, Molucca Sea.

Alex Mustard / Nudibranchs (Hypselodoris infucata) gather to feed on sponges. Their mouths are extended in this photo. The eggs behind probably belong to them too. The strange out of focus lines in the background co...

Tony Wu / Nudibranch (Hypselodoris infucata) super macro close up of rhinophores, Lembeh Strait, North Sulawesi, Indonesia.

Alex Mustard / Portrait of Nudibranch (Hypselodoris infucata) moving over the seabed. Seraya, Bali, Indonesia. Java Sea.

Jacob Guy / Nudibranch (Hypselodoris infucata) feeding on soft coral, Lembeh Strait, Indonesia.

Jacob Guy / Nudibranch (Glossodoris cincta) moving across rock, Lembeh Strait, Indonesia.