. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. CEPHALOPODA. 557 length of the glandular part of the oviduct is one inch; its termination is at the base of the funnel close to the anus, and immediately behind an accessory glandular apparatus. This body is analogous to the laminated ovarian gland of the Pectinibranchiate Tes- tacea, and, as in them, forms no part of the oviduct; but in the Nautilus it is extended in the transverse direction, and composed of two lateral convex symmetrical masses, resem- bling the corresponding separate symmetrical glands in the Decapoda
. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. CEPHALOPODA. 557 length of the glandular part of the oviduct is one inch; its termination is at the base of the funnel close to the anus, and immediately behind an accessory glandular apparatus. This body is analogous to the laminated ovarian gland of the Pectinibranchiate Tes- tacea, and, as in them, forms no part of the oviduct; but in the Nautilus it is extended in the transverse direction, and composed of two lateral convex symmetrical masses, resem- bling the corresponding separate symmetrical glands in the Decapoda, but which are here united by a third middle transverse series of laminae. All the laminae are deep, pec- tinated, and close-set, and are supplied by a large artery. The lateral groups form conspicuous projections on the external sur- face of the ventral aspect of the Nautilus, and are covered internally by a layer of thin tough membrane; the middle laminae are exposed. The female organs of the Dibranchiate Ce- phalopods present different structures, as be- fore observed, in the Decapodous and Octo- podous tribes. In the former the oviduct or oviducts have laminated glandular termina- tions, near to which are placed two detached nidamental glands : in the latter there are al- ways two distinct oviducts which pass through laminated glands, but there are no detached superadded glandular organs. The Sepia, among the Decapodous Cephalo- pods, manifests in its generative, as in its prehensory and testaceous organs, a near affinity to the Tetrabranchiate order, while the form of the female apparatus in the Octopods more closely corresponds, on the other hand, with the same parts in the Oviparous Cartilaginous Fishes. The ovarium in both tribes is a single organ, situated at the bottom of the pallial sac, and consisting of a capsule and ovisacs di- versely attached to its internal surface. The ovisacs are proportionally larger in the Decapods than in the Octopods. In the Cuttle-fish
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