Characters: This species is both zooxanthellate and azooxanthellate. Colonies are encrusting or form clumps of short, thick, highly fused branches. Corallites are crowded, up to 5 millimetres diameter and have neat round exsert walls. Long and short septa clearly alternate. Costae are weakly developed.
Colour: Yellowish-brown.
Similar species: Oculina patagonica resembles the rhizangiid Astrangia in corallite structure and sometimes in growth-form.
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