We encountered a blocky pinnacle region composed of heavy manganese-crusted basalt blocks with a high density of colonial cnidarians, stalked sponges, and their associated faunas. This area was composed of steep walls, several valleys, and strikingly acute features where current flow seemed accelerated. The community had several large and very tall precious coral Hemicorallium
species, some overgrown by yellow zoanthids. Other cnidarians included the chrysogorgiid Chrysogorgia
sp, a white species of Paragorgia
, stoloniferans, corallimorpharians, and several zoanthids proliferating over a wide rocky surface. Also observed were bright white glass sponges. Download larger version (jpg, 1.3 MB).