Colour me in. Spirula spirula is a species of deep-water squid-like cephalopod mollusc. Because of the shape of its internal shell, it is commonly known as the ram's horn squid.
Colour me in. Spirula spirula is a species of deep-water squid-like cephalopod mollusc. Because of the shape of its internal shell, it is commonly known as the ram’s horn squid.