This unusual nudibranch was found on rubble in the Padangbai area. It differs a bit from web photos of Cabangus regius in the lack of orange color around the rhinophores but otherwise seems pretty close. It also looks like the one in Gosliner et al (2018) as Dendronotus sp. 3.
This one from Tianyar in November 2024 seems a bit closer to other posted photos of Cabangus regius.
Created 14 December 2022
Updated 25 June 2025