These tiny, soft and flaccid nudibranchs always seem out of place in the genus Ceratosoma, most of whose species are much larger and rather stiff-bodied. Still, the internal anatomy apparently places them there. I'd be interested to see the molecular data compared with other Ceratosoma species. We've seen this in other areas including Hawaii and the Philippines, but our only Bali specimen was found at Sidem.
Created 22 June 2025