Constantinos Petrinos / Dorid nudibranch (Rostanga sp) laying its egg ribbon, camouflaged on a pink sponge. Lembeh Strait, North Sulawesi, Indonesia.

Pete Oxford / Nudibranch (Phyllidia coelestis), Cenderawasih Bay, West Papua, Indonesia

Georgette Douwma / Dorid nudibranch (Halgerda carlsoni) Mabul, Malaysia.

Georgette Douwma / Dorid nudibranch - Red lined jorunna (Jorunna rubescens) Kentrodorididae. Lembeh Strait, Sulawesi, Indonesia.

Richard Robinson / Dorid nudibranch (Aphelodoris luctuosa) on a red coral (Errina novazelandiae) in Doubtful Sound, Fiordland National Park, New Zealand..

Richard Robinson / Dorid nudibranch (Archidoris wellingtonensis) in Dusky Sound, Fiordland National Park, New Zealand.

Richard Robinson / A dorid nudibranch (Hoplodoris nodulosa) in Dusky Sound, Fiordland National Park, New Zealand.

Pete Oxford / Sky blue Phyllidia Dorid nudibranch (Phyllidia coelestis) Coral reef, Fiji, South Pacific.

Juergen Freund / Nudibranch (Discodoris sp.) with ribbon of eggs, Raja Ampat, West Papua, Indonesia

Juergen Freund / Ribbon egg clusters of a dorid nudibranch Raja Ampat, West Papua, Indonesia

Franco Banfi / Dorid nudibranch (Notodoris minor) Maldives, Indian Ocean

Juergen Freund / Dorid nudibranch, Lembeh Strait, North Sulawesi, Indonesia