Description
The C. heraldi does not have the blue ring about the eye and on the cover of the gill, nor does it have the modest blue markings on the corners of its fins as can be seen on the C. flavissima. Furthermore on C. heraldi, the hind area of the male’s tail fin and dorsal fin are slightly jagged. But other than these minor variations, they look very similar.
The males can have a small piece of black on their face, otherwise both sexes are all yellow. There is an alternative from the Great Barrier Reef, in the Coral Sea. This particular variety has a black parallel band with blue edges on the very back-top of the dorsal fin and usually a black saddle on the back.