A yellow urchin (Echinocrepis sp.) with a peculiar pyramid shape. This urchin was seen at a depth of around 4,200 meters during Dive 02 of the Seascape Alaska 5 expedition. The urchin was observed moving along the seafloor leaving a trail behind it as it moved onward.
Urchin
Image courtesy of NOAA Ocean Exploration, Seascape Alaska. Download larger version (jpg, 1.5 MB).

A yellow urchin (Echinocrepis sp.) with a peculiar pyramid shape. This urchin was seen at a depth of around 4,200 meters (13,780 feet) during Dive 02 of the Seascape Alaska 5 expedition. The urchin was observed moving along the seafloor leaving a trail behind it as it moved onward.