Colorful Nudibranch

Ceratosoma trilobatum (J. E. Gray, 1827) Nishiki Umiushi

Ceratosoma trilobatum (J. E. Gray, 1827)

This is a very common Nudibranch, but one of my favorite. This guy was hanging on an isolated small rock on the mud bottom. -18m. 26℃.
At Owase, Mie, Japan. The water is hotter comper with the ordinary year. Set, 26, 2019
This nudibranch is called Nisiki Umiushi as the common name in Japan.
Nishiki is a generic term for silk fabrics woven using various colored yarns. So, Nishiki often is used term to refer to vivid and beautiful things.