Calyptrophora clarki is a solitary stony coral that, due to its deep distribution, relies on the capture of zooplankton and marine snow to provide energy for its growth.
Colonies of Calyptrophora clarki often harbor several small specimens of the white brittle star Ophiomoeris obstricta (Lyman, 1878).
Similar species: Calyptrophora antilla Bayer, 2001
Calyptrophora japonica Nutting, 1908
Calyptrophora japonica f. B Versluys, 1906