A new species of deep-water azooxanthellate scleractinian coral is described from the northwestern Atlantic, named Trochocyathus circularis. It is distinctive for its almost circular calice. A new name is proposed for the junior primary homonym Desmophyllum striatumCairns, 1979, which was preoccupied by the senior homonym, a Miocene fossil from Italy, described in 1871 by Sismonda in Sismonda & Michelotti.

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