Recent Memoirs on the Cetacca by Professors Eschricht, Reinhardt and Lilljeborg

Recent Memoirs on the Cetacca by Professors Eschricht, Reinhardt and Lilljeborg

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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. 1866 edition. Excerpt: ...described by the authors of the memoir, does not exist in this specimen. Indeed, the separation of the last two bones is only slightly indicated near the lower surface of the united bodies. The upper part of the arch will be seen to consist of three pieces, the first composed only of the atlas, the second common to the axis and the four succeeding vertebrae, the last formed of the seventh by itself. The ligaments usually attached to the odontoid process are inserted into a deep pit, situated in the middle line, between the articular surfaces of the condyles. The first dorsal vertebra has not, in this instance, contracted any union with the seventh cervical. There are but eleven chevron bones, and certainly no more existed in an ossified condition; the first and the last three have the two lateral parts of which they are composed not united in the mesial line; the eleventh pair are disk-like bones, about an inch and a half in diameter, situated in the interspace between the twelfth and thirteenth vertebra e from the termination of the tail. The ribs are but twelve in number, the last well developed. From the great care with which the skeleton was prepared it seems unlikely that any more can have existed and been overlooked; but the extremities of the transverse processes of the vertebra, following that which bears the twelfth rib, are certainly somewhat enlarged, and present an imperfect articular surface; this may be, however, for a second attachment of the twelfth rib. The sternum is heart-shaped, but with the anterior border very slightly excavated, and the posterior end much narrowed. It is twenty-two inches in length and twenty in breadth. The bones of the anterior extremities resemble, in their general arrangement, form: and number, ..show more

Product details

  • Paperback | 170 pages
  • 189 x 246 x 9mm | 313g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236801407
  • 9781236801401