Birds of Other Lands, Reptiles, Fishes, Jointed Animals and Lower Forms

Birds of Other Lands, Reptiles, Fishes, Jointed Animals and Lower Forms

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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. 1917 edition. Excerpt: ...the Viperine series, they are distinguished by the circumstance that the upper jaw is firmly fixed in a horizontal position, and is not capable of erection in a vertical plane, or like the lid of a box, as obtains with the Vipers. A European speoes, ssmslar tn ssze and habtts to the British rsnged snake, but more handsomely marked Thefamilyofthe CoMMON SN aKES These snakes are separated into secondary groups with relation to the structure of their teeth. In one series these teeth are solid throughout, neither grooved nor tubular; and all By ptrmtsshn of tho Ntw Tork Zoeltgtcat Soctoty PINE-SNAKE A trce-haunttng Amertcan spectes wtth very bold marktngs the snakes thus characterised are harmless. In the second series one or more pairs of the hinder upper teeth are longitudinally grooved, and act as poison-fangs; they are consequently distinguished as the "back-fanged" group. In the third series the front teeth of the upper jaw-bone are grooved, and constitute the poison-fangs, and they are known as the "frontfanged" group. To the first-mentioned solid-toothed and harmless division of the family belongs the British Ringed Snake and some forty other allied species which are collectively known as WaTER-SNaKES, with reference to their more or less pronounced aquatic habits. The ringed snake has a stoutish cylindrical body, keeled scales, flat head covered with regular shields, wide mouth-cleft, and numerous teeth, the strongest of which are at the hinder end of the jaw-bone. The colour varies somewhat, being usually grey, brown, or olive above, with darker spots or narrow transverse bands; the under-surface is mottled black and white or grey. The lip-shields are white or yellowish, with black dividing-lines. The neck in more

Product details

  • Paperback | 158 pages
  • 189 x 246 x 9mm | 295g
  • United States
  • English
  • black & white illustrations
  • 123676434X
  • 9781236764348