A diver measures a Crowned sea urchin (Centrostephanus coronatus) with a pair of calipers. These urchins are quite fragile and are measured on the dive to avoid injury.
chis-160825-118-of-131
A diver measures a Crowned sea urchin (Centrostephanus coronatus) with a pair of calipers. These urchins are quite fragile and are measured on the dive to avoid injury.