Nembrotha cristata
seen from Germany

seen from Netherlands
seen from China

seen from United States

seen from Malaysia
seen from South Korea
seen from China
seen from United States
seen from Malaysia
seen from Japan

seen from Australia

seen from United States

seen from Malaysia

seen from United States
seen from China
seen from Thailand

seen from Italy

seen from Malaysia
seen from China

seen from Malaysia
Nembrotha cristata
Marbella Sea Slug (Tambja marbellensis), family Polyceridae, found off the coast of the Iberian Peninsula
photograph by Jose Antonio Salido
Variable Neon Slug
Photo by Chris Ross | Info
The doughnut nembrotha (Nembrotha rosannulata) is a species of colorful sea slug, a dorid nudibranch, a marine gastropod mollusk in the family Polyceridae. This species is known only from Eastern Australia (Northern New South Wales & Southern Great Barrier Reef). It is most commonly seen at Cabbage Tree Island, Port Stephens, NSW. It is a large dull green nembrothid that grows to at least 12 cm in length. The body is textured with rounded longitudinal ridges and scattered raised pustules of various sizes. The pustules are black and each is surrounded by a pink ring which give this species its characteristic color pattern - and name.
Variable Neon Sea Slug (Nembrotha kubaryana), family Polyceridae, found in the western Indo-Pacific
photograph by @kathrin_underwater
Nembrotha cristata
Sea Slug (Tambja sp.), family Polyceridae, Bali, Indonesia
photograph by Aldo Galante
Tambja marbellensis