Identifier: principlesofzo00agass (find matches)
Title: Principles of zoölogy : touching the structure, development, distribution, and natural arrangement of the races of animals, living and extinct with numerous illustrations : Part 1, Comparative physiology : for the use of schools and colleges
Year: 1863 (1860s)
Authors: Agassiz, Louis, 1807-1873 Gould, Augustus A. (Augustus Addison), 1805-1866
Subjects: Zoology Physiology, Comparative
Publisher: Boston : Gould and Lincoln New York : Sheldon and Co. Cincinnati : Geo. S. Blanchard
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Smithsonian Libraries

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ution into faunas, as determined by climate,than the continent of America; extending as it does acrossboth hemispheres, and embracing all latitudes, so that allclimates are represented upon it, as shown by the chart on thefollowing page. 415. Let a traveller embark at Iceland, which is situatedon the borders of the polar circle, with a view to observe,in a zoological aspect, the principal points along the easternshore of America. The result of his observation will bevery much as follows. Along the coast of Greenland andIceland, and also along Baffins Bay, he will meet with anunvaried fauna, composed throughout of the same animals,which are also for the most part identical with those of thearctic shores of Europe. It will be nearly the same alongthe coast of Labrador. 416. As he approaches Newfoundland, he will see thelandscape, and with it the fauna, assuming a somewhat morevaried aspect. To the wide and naked or turfy plains ofthe boreal regions succeed forests, in which he will find
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FAUNAS. I. North Glacial or Arctic. II. Northern Temperate. III. Northern AVarm. IV. Tropical. V. Southern Warm. VI. Southern Temperate. Q^kWr QW mQLQQlQAL REGtQKS.__ 196 GEOGRAPHICAL DISTRIBUTION OF ANIMALS. various animals which dwell only in forests. Here the Xem*Derate fauna commences. Still the number of species is not5^et very considerable ; but as he advances southward, alongthe coasts of Nova Scotia and New England, he finds newspecies gradually introduced, while those of the colder regionsdiminish, and at length entirely disappear, some few acci-dental or periodical visiters excepted, who wander, duringwinter, as far south as the Carolinas. 417. But it is after having passed the boundaries of theUnited States, among the Antilles, and more especially onthe southern continent, along the shores of the Orinoco andthe Amazon, that our traveller will be forcibly struck withthe astonishing variety of the animals which people the for-ests, the prairies, the rivers, and the sea-shores

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