This species is mostly associated with shallow coral-reef habitats. Reported to be diurnal and solitary, and not observed displaying aggressive mimicry behavior as H. unicolor in Panama .
Dorsal spines (total): 10; Dorsal soft rays (total): 15; Anal spines: 3; Anal soft rays: 7. This species is distinguished from all its congeners by its coloration: body white with thin vertical lines but there are no bars (or very faint); snout with black spot surrounded by electric blue lines; caudal peduncle entirely covered by a black saddle blotch, extending over posterior part of body and sometimes, over posterior part of dorsal fin; no black eye-mask .: short and / or deep; Cross section: compressed.
Behavioural data for Campeche Bank hamlet is currently being reviewed.
Marine; reef-associated; depth range 1 - 20 m . Tropical West Atlantic: southern Gulf of Mexico, Mexico (Campeche Bank).
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