A beautiful and delicate cup coral, so far only identified as Caryophyllia sp., collected from the western flank of the Challenger Plateau, north-west off New Zealand, from a depth of ~840 m. It is only about 1.5 cm in diameter. [Peter ‘Chazz’ Marriott NIWA/ Oceans Survey 20/20 Challenger Plateau] Credit: Peter ‘Chazz’ Marriott NIWA/ Oceans Survey 20/20 Challenger Plateau.