Tompsett, D.H. 1939. Sepia. Liverpool Marine Biological Committee Memoirs. 32: 184 pp. London. Williams and Norgate.
Plate 11, Figure 36.
Fig. 36. Ventral view of the digestive system, showing also the retractor muscles (O.M.B. and L.M.B.) of the buccal mass, and the blood sinuses of the head. The peri-buccal sinus (P.B.S.) has been exposed by cutting through the middle of arms number 3 on both sides in the longitudinal plane. The ventral half of the head has been removed, together with the left half of the cephalic cartilage (C.C.). Posterior to the skull the digestive system has been completely isolated from the body, and the ducts (D.L.) of the digestive glands (L.) have been dissected away from the oesophagus and intestine, to which they were attached. Part of the pancreas (PA.) has been clipped off the right duct.