"Diagram of circulatory and excretory systems in a Decapod-like Sepia. 1, Gill; 2, renal sac; 3, afferent…
"Diagram of the structure of Sepia. a., Eight short arms around mouth; l.a., one of the two long arms;…
The Common Cuttlefish (Sepia officinalis) is a mollusc in the Sepiidae family of cephalopods.