Giant Porites Coral, Porites sp., Christmas Island, Australia

Yellowback Anthias over Coral Reef, Pseudanthias evansi, Christmas Island, Australia

Lobe coral (Porites lobata) covered with christmas tree worms (Spirobranchus giganteus), Namu atoll, Marshall Islands, Pacific

Lobe coral (Porites sp.), Namu atoll, Marshall Islands, Pacific

Small giant clam (Tridacna maxima) surrounded by lobe coral (Porites lutea), Namu atoll, Marshall Islands, Pacific

Small giant clam (Tridacna maxima) surrounded by lobe coral (Porites lutea), Namu atoll, Marshall Islands, Pacific

Lobe coral (Porites spp.), Namu atoll, Marshall Islands, Pacific

Christmas tree worms (Spirobranchus giganteus) on lobe coral (Porites lobata), Namu atoll, Marshall Islands, Pacific

A Reef Manta Ray (Mobula (formerly Manta) alfredi) hovers over a reef cleaning station off the Kona Coast, the Big Island, Hawaii, USA. This particular female manta with a missing left cephalic lobe has been observed by divers and snorkelers at Kona since