. Comparative embryology of the vertebrates; with 2057 drawings and photos. grouped as 380 illus. Vertebrates -- Embryology; Comparative embryology. Fig. 361—Continued bony stapedial portion which articulates with the fenestra vestibuli and a distal carti- laginous extrastapedial segment which connects with the external tympanic membrane. The eustachian tube connects with the same tube on the contralateral side to form a common opening into the dorsal pharyngeal area. The external ear opening is protected by feathers. The ear of lizards resembles that of the bird, a short external auditory mea
. Comparative embryology of the vertebrates; with 2057 drawings and photos. grouped as 380 illus. Vertebrates -- Embryology; Comparative embryology. Fig. 361—Continued bony stapedial portion which articulates with the fenestra vestibuli and a distal carti- laginous extrastapedial segment which connects with the external tympanic membrane. The eustachian tube connects with the same tube on the contralateral side to form a common opening into the dorsal pharyngeal area. The external ear opening is protected by feathers. The ear of lizards resembles that of the bird, a short external auditory meatus being present, protected externally in many instances by scales. In the frog, Rana cavitympanum of Siam, the tympanic membrane similarly has moved inward and an external auditory meatus is present. (M) The right membranous labyrinth of the shark, Squalus acanthias. (Redrawn from Adams and Eddy, 1949, Comparative Anatomy, New York, Wiley & Sons. (N) The right membranous labyrinth of the frog, Runa. (O) The right membranous labyrinth of the pigeon, Columha. 852. 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 Nelsen, Olin E. (Olin Everett), b. 1898. New York, Blakiston
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Keywords: ., bookcentury1900, bookcollectionameri, bookcollectionbiodiversity
