Tompsett, D.H. 1939. Sepia. Liverpool Marine Biological Committee Memoirs. 32: 184 pp. London. Williams and Norgate.
Plate 6, Figure 20.
Fig. 20. Dissection of the coelomic cavities of a male specimen. The thick lines represent the outlines of the various chambers of the body cavity. The inksac has been dissected away from the ventral wall of the viscero-pericardial coelom, leaving the posterior mantle artery (P.M.A.) which runs ventral to it intact. The ventral renal chamber (V.CH.) has been opened by slitting the renal papillae (RE.P.), and the entire ventral wall of this cavity has been removed. Part of the rectum (RE.) has been cut away to expose the fork of the cephalic vein (CE.V.) into the two venae cavae (V.C.). The renal appendages (RE.A.) have all been clipped off on the left side, to show the course of the veins. The coelomic spaces around the branchial hearts (B.H.) have been opened, and the branchial heart on the left side is shown in section to illustrate the course of the blood to the branchia. The afferent (A.V.) and efferent (E.V.) vessels of the left branchia have been dissected out, and the factors contributing to the left anterior mantle vein (A.M.V.) have been exposed. A window has been cut in the posterior, or visceral part of the viscero-pericardial coelom, through which part of the testis (TE.) and stomach (ST.) can be seen. The outline of the anterior part of the viscero-pericardial coelom (O.VP.) is shown by broken lines. It communicates on either side with the ventral renal chamber by small apertures (A.VP.C.) at the bases of the renal papillae. A small window has been cut through the wall of the posterior part of the dorsal renal chamber (C.D.C.), exposing part of the spiral caecum (CA.). The outline of the rest of this cavity which opens into the ventral renal chambers anteriorly by a large orifice (L.V.D.) is shown by broken lines (O.D.C.). The outline of the ink gland (I.G.) showing through the dorsal surface of the inksac is shaded. The position of the clear central portion of this gland.(C.I.G.) is also shown.