. Elements of comparative zoology. Zoology. Fig. 105.—Skull of cod. (After Hertwig.) The dotted portion is the pterygo- quadrate arch and is equivalent of the upper jaw of the shark (Fig. 104),. Fig. 106.—Diagram (after Wiedersheim) showing the relation of permanent structures (dark) to the gill-arches of the embryo (dotted), h, hyoid arch; I, cartilages of larynx; I, II, III, gill-bars. At the front of h and I is shown in black the hyoid bone of the adult, with its two horns; behind the ear, at the other end of the hyoid arch, is (black) a piece (styloid process) which joins the skull. are bu
. Elements of comparative zoology. Zoology. Fig. 105.—Skull of cod. (After Hertwig.) The dotted portion is the pterygo- quadrate arch and is equivalent of the upper jaw of the shark (Fig. 104),. Fig. 106.—Diagram (after Wiedersheim) showing the relation of permanent structures (dark) to the gill-arches of the embryo (dotted), h, hyoid arch; I, cartilages of larynx; I, II, III, gill-bars. At the front of h and I is shown in black the hyoid bone of the adult, with its two horns; behind the ear, at the other end of the hyoid arch, is (black) a piece (styloid process) which joins the skull. are but modified gill-bars. With the disappearance of gills in the higher vertebrates the branchial arches tend. 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 Kingsley, J. S. (John Sterling), 1854-1929. New York, H. Holt and Company
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectzoology, bookyear1904
