This large mushroom coral, observed with its tentacles retracted, may be a species new to science. The rock below the coral is covered with small white barnacles; a rock sample was collected to identify the barnacle. This image was taken on Quinn Seamount during Dive 04 of the Seascape Alaska 5 expedition.
Mushroom Coral
Image courtesy of NOAA Ocean Exploration, Seascape Alaska. Download larger version (jpg, 1.6 MB).

This large mushroom coral, observed with its tentacles retracted, may be a species new to science. The rock below the coral is covered with small white barnacles; a rock sample was collected to identify the barnacle. This image was taken on Quinn Seamount during Dive 04 of the Seascape Alaska 5 expedition.