We saw these at Gilimanuk. The way to distinguish these from Centriscus scutatus is that Aeoliscus has a hinged dorsal spine, which on this fish is located at the posterior end of the body. In these photos the hinge is visible as a whitish spot on the pointed spine on the narrow spine pointing upward.
The hinged dorsal spine where it is bent is easier to see in this shot.
Created 23 March 2023
Updated 2 July 2025