Anthozoa - Scleractinia - Caryophylliidae

Alternative combination: Placocyathus trinitatis

Belongs to Antillocyathus according to S. H. Frost and R. L. Langenheim 1974

Sister taxa: Antillocyathus alatus, Antillocyathus cristatus, Antillocyathus gracilis

Ecology: stationary low-level epifaunal microcarnivore