Reports of the Princeton University Expeditions to Patagonia, 1896-1899; J.B. Hatcher in Charge Volume 6

Reports of the Princeton University Expeditions to Patagonia, 1896-1899; J.B. Hatcher in Charge Volume 6

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1909 edition. Excerpt: ... of animals which have no near analogues in the modern world. In size, ./V. z'mbrz'catus, which is the abundant Santa Cruz species, does not greatly exceed the American tapirs, though it is decidedly a heavier and stouter animal, with proportions not unlike those of the early rhinoceroses. A comparison of the skeletons of Nesodon and T oxodon (cf. Pl. XII, fig. 2, with Lydekker's plate, '93) reveals many differences between the Santa Cruz and the Pampean genus, not only in innumerable matters of detail, but also in the general proportions and whole appearance of the two animals. T oxodon is a far larger and, in particular, a much more massive animal and all the bones of its skeleton are very much heavier, not only actually, but proportionately as well. A very peculiar appearance is given to the skeleton by the relative shortness of the fore-legs, depressing the whole anterior portion of the vertebral column and bringing the head much below the level of the back and loins. This peculiarity is especially striking and remarkable when the skeleton is seen from the front end. Something of the same sort is to be seen in Nesodzm, but in no such pronounced degree, and this constitutes one of the principal differences in the appearance of the two skeletons. In T oxodon the skull is relatively longer and shallower dorso-ventrally and tapers more to the anterior end; several minor modifications combine to alter its appearance very materially. Of these may be mentioned the more elevated orbits, the much shortened nasals, with the more elongated and sloping anterior nares, the more prominent crest on the dorsal side of the premaxillaries, and the long diastema behind the functional incisors. Even more characteristic is the shape of more

Product details

  • Paperback
  • 189 x 246 x 7mm | 249g
  • United States
  • English
  • black & white illustrations
  • 1236832558
  • 9781236832559