. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. Vol. 147, No. 3 December, 1974 THE BIOLOGICAL BULLETIN PUBLISHED BY THE MARINE BIOLOGICAL LABORATORY ULTRASTRUCTURE OF A CEPHALOPOD PHOTOPHORE. I. STRUCTURE OF THE PHOTOGENIC TISSUE Reference: Biol. Bull, 147: 507-521. (December, 1974) JOHN M. ARNOLD AND RICHARD E. YOUNG Pacific Biomcdical Research Center, University of Haivaii, Honolulu, Hawaii; Marine Biological Laboratory, Woods Hole, Massachusetts; and Department of Oceanography, University of Haivaii, Honolulu, Hawaii Of the many animal taxa which are capable of light p
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. Vol. 147, No. 3 December, 1974 THE BIOLOGICAL BULLETIN PUBLISHED BY THE MARINE BIOLOGICAL LABORATORY ULTRASTRUCTURE OF A CEPHALOPOD PHOTOPHORE. I. STRUCTURE OF THE PHOTOGENIC TISSUE Reference: Biol. Bull, 147: 507-521. (December, 1974) JOHN M. ARNOLD AND RICHARD E. YOUNG Pacific Biomcdical Research Center, University of Haivaii, Honolulu, Hawaii; Marine Biological Laboratory, Woods Hole, Massachusetts; and Department of Oceanography, University of Haivaii, Honolulu, Hawaii Of the many animal taxa which are capable of light production, the Cephalopoda present some of the most varied and elaborate photophores known. Photogenic organs are found within the mantle (Clarke 1965) in or by internal organs (, ink sac; Boletzky, 1970) or on the siphon (Hoyle, 1904), on the skin of the mantle, head and/or tentacles, and on the surface of the eye (Berry, 1920a, 1920b). There are many different types of photogenic organs and several dif-. FIGURE 1. Light micrograph of a whole photophogenic tissue (pg) composed of an axial cone and spheroidal knob enclosed in a posterior cup (pc) made of regular iridophores. The anterior cap (ac) grades into a conical "plug" of iridophores in the center of the axial cone. Distal to the anterior cap is the clear lens (In) composed of iridophores with many iridosomes in each cell. Surrounding the axial cone is a conical layer of irregular iridophores (irr). The posterior cup and proximal side of the whole organ is covered with a layer of brownish pig- ment (pig). Muscle bands (mb) and blood vessels (bv) occasionally penetrate the posterior cup or irregular iridophores. 507 Copyright © 1974, by the Marine Biological Laboratory Library of Congress Card No. A38-518. 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 resembl
Size: 2231px × 1120px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
