. Elements of the comparative anatomy of vertebrates. Anatomy, Comparative; Vertebrates -- Anatomy. FIG. 29.'—TAIL OF Protopterus. thoracic, and a very short caudal. In Anura, no special lumbar region can be recognised, and the caudal portion is modified to form a " urostyle " (see p. 42). The notochord of Urodele Iarva3, like that of most Fishes, undergoes vertebral constrictions, while intervertebrally it grows thicker, and accordingly appears expanded. Thus the vertebrae here. FIG. 30. —TAIL or Lcpidostcus. also are am phic colons. Later, intervertebral masses of cartilage become
. Elements of the comparative anatomy of vertebrates. Anatomy, Comparative; Vertebrates -- Anatomy. FIG. 29.'—TAIL OF Protopterus. thoracic, and a very short caudal. In Anura, no special lumbar region can be recognised, and the caudal portion is modified to form a " urostyle " (see p. 42). The notochord of Urodele Iarva3, like that of most Fishes, undergoes vertebral constrictions, while intervertebrally it grows thicker, and accordingly appears expanded. Thus the vertebrae here. FIG. 30. —TAIL or Lcpidostcus. also are am phic colons. Later, intervertebral masses of cartilage become developed, which, together with the bone which is formed at the same time in the surrounding connective-tissue, extend in- wards towards the centre, gradually constricting the notochord so that eventually it may become entirely obliterated. Finally a dif- ferentiation, as well as a resorption, extending inwards from the. 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, New York, Macmillan
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Keywords: ., bookcentury1800, bookdecade1880, bookpublisherlondonnewyorkmacmi
