Synopsis Reptillium; Or, Short Descriptions of the Species of Reptiles

Synopsis Reptillium; Or, Short Descriptions of the Species of Reptiles

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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. 1831 edition. Excerpt: ... by the margin. The sternal shields thirteen, the additional or intergular plate being situated between the pair of gular plates, or between the hinder angle of them and the front angle of the humeral plates. The vertebrae of the neck are so formed that the animal cannot withdraw the head into the shell, like the other tortoises: and the bones of the pelvis are united by a bony process to the hinder part of the sternum as well as to the vertebrae, as observed by Cuvier in the skeleton of Chelys, (Os. Fos. v. 214, t. 12, f. 20); and by Mr. Bell in Hg/draspis. This character may be known even when the pelvis is lost by the scar left by its attachment to the bone. They live in ponds and ditches in the warm regions of both Continents, eating Mollusca and worms, and feeding only in the water. The animals of this group require further examination and comparison. Of the sixteen species here indicated, two are Australasian, five African, and nine Tropical American. Gen. 1. STERNOTHERUS, (Sternother-us.) Sternum latum, lobus anterior mobilis sutura transversa ligamentosa ad lobum medium articulatus, scutellum intergulare marginale, nuchale nullum, maxillae corneae. 38 CHELODINA. The shell is roundish, rather convex; the sternum is broad, rounded before, bifid behind. The front lobe (and sometimes the hinder one, according to Daudin) is separated from and moveable on the central lobe by a transverse cartilaginous suture. The suture of the front lobe is placed between the pectoral and abdominal plates, and the front lobe is furnished with an internal bony process on each side, near the suture, serving as a hinge. The intergular plate is in the margin, between the gular plates; the margin is destitute of any nuchal plate; the lateral marginal plates...show more

Product details

  • Paperback | 32 pages
  • 189 x 246 x 2mm | 77g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236759869
  • 9781236759863