Venus girdle - Cestum veneris
A ribbon-like comb jelly.
See some interesting facts on comb jellies here:
See it extended, here:
The Venus girdle is a comb jelly in the family Cestidae. It is the only member of its genus, ''Cestum''.
Similar species: Cestida
Uploaded Jul 20, 2020. Captured Nov 5, 2019 03:59 in Indonesia.