The Royal Natural History; Mammals, Birds

The Royal Natural History; Mammals, Birds

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1895 edition. Excerpt: ...and certain, other reptiles, and unknown among higher mammals. Another feature of these animals is connected with the milk-glands, which instead of opening by nipples or teats, communicate with the exterior by a number of small pores situated in a cuplike depression in the skin of the abdomen. Although there are many other peculiarities in the structure of these animals, if we add to the above that their brains are of an exceedingly low and simple type, and that their young are produced from eggs, we shall not have much difficulty in understanding why they are referred by naturalists to a distinct subclass. It may be added that their skeletons possess "marsupial" bones similar to those of the Pouched Mammals. The Duckbill. Family Ornithorhynchidje. The duckbill, or duck-billed platypus (Ornithorhynchus anatinus), derives its name from the duck-like bill forming the extremity of the head. In length the adult male duckbill measures from 18 to 20 inches from the tip of the beak to the extremity of the rather short tail. The muzzle is expanded and flattened, and has both the upper and lower jaws invested with a blackish naked beak not unlike that of a duck. This beak is bordered by a naked sensitive skin, forming a lappet-like fold at the base of the snout; the nostrils being situated near its anterior extremity. The depressed and oval-shaped body is covered with short, close, and somewhat mole-like fur, comprising both longer hairs and a woolly under-fur; its usual colour being deep brown, becoming paler underneath. There are no external conchs to the ears; and the eyes are small, and in the living state inconspicuous. The tail is broad and somewhat flattened, with a coat of coarse hairs, which on the under surface become more or less worn...show more

Product details

  • Paperback | 232 pages
  • 189 x 246 x 12mm | 422g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 123657978X
  • 9781236579782