Kalinga ornata

Kalinga ornata is a species of large, colourful nudibranch in the family Polyceridae.

It is the only species in the genus Kalinga, which is the type genus of the subfamily Kalinginae.

[2] Kalinga ornata resides in the deep coastal waters of the Indo-West Pacific (though it has also been reported from Hawaii).

[3] [4] While it occasionally washes up in shallow regions, live individuals have been observed by divers at a depth of 6 m,[5] they have been trawled from depths of 76 m,[6] and observed by an ROV at a depth of 182 m.[4] Kalinga ornata is nocturnal, reaching sizes of at least 130 mm, and prefers sandy or silty substrate.

[3][5][7] It has been shown to feed on brittle stars, a completely unique diet for a nudibranch.

Closeup of K. ornata' s naked gill: This photo was taken at a famous diving spot named '82.5K' along the northeast coast of Taiwan at 15 m depth.
K. ornata