Hydnophora exesa

Hydnophora exesa (Pallas, 1766)

photo by Veron, Charlie (J.E.N.)

Family:	Merulinidae ()
Max. size:
Environment:	reef-associated; marine; depth range 0 - 40 m
Distribution:	Indo-Pacific.
Diagnosis:	More recognizable when polyps are retracted. Characterized by conical collines called monticules, which sometimes combine to form ridges. Color varies from grey to blue or bright green.
Biology:	Occur in small colonies. Polyps expand during the day. An extremely aggressive species. Surface is often covered with barnacles, particularly Creusia spp. (Ref. 130769).
IUCN Red List Status:	(LC); Date assessed: 24 October 2023 Ref. 123251)
Threat to humans:
Country info:

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