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Encyclopedia Britannica - Main :: NEW-NUM |
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NORTHERN ZONE .The boundaries of the northern zone coincide in the main with the northern limit of the equatorial zone; but they overlap the latter at different points. This happens in Syria, as well as east
Mesopotamia
island
There is no separate
extinct
south
latitude
char
arcturus
The Palaearctic or Europaeo-Asiatic Region.The western and southern boundaries of this region coincide with those of the northern zone. Bering Strait and the Kamchatka Sea have been conventionally taken as the boundary in the north, but the fishes of both coasts, so far as they are known, are not sufficiently distinct to be referred to two different regions. The Japanese islands exhibit a decided Palaearctic fish fauna with a slight influx of tropical forms in the south
east
African
The boundaries of the North American or Nearctic region have been sufficiently indicated. The main features and the distribution of this fauna are identical with those of the preceding region. End of Article: NORTHERN ZONE If you wish, you can link directly to this article.
<a href="http://jcsm.org/StudyCenter/Encyclopedia/NEW_NUM/NORTHERN_ZONE.html"> NORTHERN ZONE </a> |
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