Characters: Colonies are thin delicate laminae with widely but uniformly spaced corallites. Corallites are well defined, becoming immersed, with indistinct walls. Septo-costae form parallel striations irrespective of the position of corallites. Most septa radiate from the corallite centre, but those adjoined to costae remain aligned with the costae. Septo-costae inside corallites are in three indistinct orders. Columellae consist of a few septal spines or are absent.
Colour: Usually dark brown, sometimes grey.
Similar species: No other Echinophyllia has septo-costae crossing corallites. Echinophyllia pectinata has similar thin laminae and corallites of similar size.
;)
