. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. Actinia alcyonoidea. {After Quoy et Gcdmard.') into the interior of the body so as to form the stomachal cavity (k). Extending between the internal surface of the outer walls of the body and the exterior of the stomach are numerous longitudinal septa (c), evidently the homo- logues of the vertical partitions of the Alcyo- nide (/g. 31,/), and were these calcified by the deposition of stony matter in their interior they would represent exactly the radiating septa in the cells of the polypary delineated As in the
. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. Actinia alcyonoidea. {After Quoy et Gcdmard.') into the interior of the body so as to form the stomachal cavity (k). Extending between the internal surface of the outer walls of the body and the exterior of the stomach are numerous longitudinal septa (c), evidently the homo- logues of the vertical partitions of the Alcyo- nide (/g. 31,/), and were these calcified by the deposition of stony matter in their interior they would represent exactly the radiating septa in the cells of the polypary delineated As in the preceding genera these mem- branous septa support the organs of repro- duction, which are constructed after the fol- lowing manner.* The whole interior of the Actinia, between the stomach and the muscular parieties of the body, is divided by means of the septa into numerous longitudinal cavities, each of which communicates with the bases of two or three of the tentacula around the mouth f and encloses an ovary. Each ovary is composed of three or four cylindrical and coherent tubes of extreme delicacy, which, towards the base of the * Spix, ArmaJes dn Museum d'Hist. Nat. torn. 13. t For an admirable diagrammatic representation of the structure of Actinia, the reader is referred to Dr. Sharpey's Article " CILIA," Vol. I. fig. 207. Fig. Section of "Actinic ; a, Tentacles surrounding the mouth ; b, stomach ; c, longitudinal septa prolonged and enclosing the ovaries. (After Quay et Gaimard.) p 4. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Todd, Robert Bentley, 1809-1860. London, Sherwood, Gilbert, and Piper
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