. Comparative anatomy of vertebrates. Anatomy, Comparative; Vertebrates. 354 COMPARATIVE ANATOMY backwards from the mouth, a ventral branchial or respiratory and dorsal oesophagus (Fig. 259, B). Inspiration as well as expira- \\\\\\\. B FIG. 259.—DIAGRAM OF A LONGITUDINAL SECTION THROUGH THE HEAD OF THE LARVAL (A) AND ADULT (B) LAMPREY. tion takes place through the gill-apertures when the animal is attached by its suctorial mouth. In Petromyzon and Bdellostomal the individual branchial sacs, which communicate directly with the pharynx, open freely to the exterior : in Myxine this original cond
. Comparative anatomy of vertebrates. Anatomy, Comparative; Vertebrates. 354 COMPARATIVE ANATOMY backwards from the mouth, a ventral branchial or respiratory and dorsal oesophagus (Fig. 259, B). Inspiration as well as expira- \\\\\\\. B FIG. 259.—DIAGRAM OF A LONGITUDINAL SECTION THROUGH THE HEAD OF THE LARVAL (A) AND ADULT (B) LAMPREY. tion takes place through the gill-apertures when the animal is attached by its suctorial mouth. In Petromyzon and Bdellostomal the individual branchial sacs, which communicate directly with the pharynx, open freely to the exterior : in Myxine this original condition becomes modified by the outer parts of the gill-passages growing out into long tubes, JnfHHML Cli A'. 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 Wiedersheim, Robert, 1848-1923; Parker, W. N. (William Newton), d. 1923. London, Macmillan and co. , limited
Size: 2706px × 924px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectanatomycomparative
