PEOF. OWEN ON NEW AND EAEE CEPHALOPODA. 143 



eyeballs, anterior to the ventral border of the cranium. The muscles of the " corona " 

 come from both dorsal and ventral surfaces of the cranium. 



The gullet is long, slender, without partial dilatation. The stomach is an oblong 

 caecal pouch, an inch in length. The pylorus, situated near the cardiac orifice, conducts 

 by a very short canal to the second, spirally disposed, pouch, the blind end of which 

 forms only a single turn with an obtuse apex. The intestine makes a single bend for- 

 ward, is short, and at its anal termination is provided with a pair of slender tentacles, 

 each 1^ line in length. 



The liver consists of a single oblong elliptical mass, 2 inches in length, 9 lines in 

 breadth ; its capsule shows a glistening surface. Two hepatic ducts emerge from its 

 hinder end, each about an inch in length, and developing clusters of quasi-pancreatic 

 follicles. Beyond these the ducts open upon a groove continued from the spiral glan- 

 dular pouch into the beginning of the intestine. The ink-bladder is fusiform, narrow, 

 coextensive with and parallel to the straight terminal part of the alimentary canal, with 

 the termination of which it communicates by a short and wide duct. Each branchia 

 consists of 40 pairs of plicate plates ; the suspensory folds are coextensive with the 

 gill. Each branchial heart is simple, without appendage. But on the division of the 

 vena cava leading thereto is the usual glandular supposed " renal " organ ; its capsule 

 is thick and pulpy ; and it communicates with the abdominal cavity by a widish opening 

 with a coloured margin. The size of each renal sac was 1 inch by 9 lines. 



The systemic heart is of an elongate lozenge-shape, receiving the branchial veins at 

 nearly opposite transverse angles, near the fore part of the ventricle. This sends off 

 one large posterior aorta and a smaller anterior artery. The peritoneal or lining mem- 

 brane of the mantle is reflected upon the viscera about an inch behind the anterior free 

 border of the mantle, and also from the capsule of the gladius, along which it is attached. 

 The two chief lateral nerves of the muscular mantle are each accompanied by a more 

 slender nerve, which expands into the stellate ganglion from which radiate the nerves to 

 the anterior third part of the mantle. From the hind end of the ganglion a small nerve 

 is continued on, parallel with the unganglionic chord, to the attached bases of the ter- 

 minal fins, which thus derive their nervous supply from both the sensory and motory 

 chords. The sex of the specimen was female ; the organs of generation were as in 

 Loligopsis cyclura '. 



I am indebted to Tradescant Lay, Esq., for the subject of the above description, 

 which was captured in the Chinese sea. 



' L. guttata, Grant, Trans. Zool. Soc. vol. i. pi. ii. fig. 3, g, figs. 8, 9. 



