. Elements of comparative zoology. Zoology. 410 GENERAL ZOOLOGY. and the eastern Malay archipelago. These regions are not all equivalent. The Australian is most markedly separated from the rest, while the Nearctic and the Palm- are tic are closely similar; indeed, are often united as a Holarctic region. The Australian region is characterized by the mono- tremes and by the great abundance of the Marsupials,. Fig. 177.—Main geographical regions of the earth. Horizontal lines Pala3- arctic; vertical lines, Nearctic; coarse oblique, Ethiopian; fine oblique, Neotropical; cross-lined, Oriental; dott
. Elements of comparative zoology. Zoology. 410 GENERAL ZOOLOGY. and the eastern Malay archipelago. These regions are not all equivalent. The Australian is most markedly separated from the rest, while the Nearctic and the Palm- are tic are closely similar; indeed, are often united as a Holarctic region. The Australian region is characterized by the mono- tremes and by the great abundance of the Marsupials,. Fig. 177.—Main geographical regions of the earth. Horizontal lines Pala3- arctic; vertical lines, Nearctic; coarse oblique, Ethiopian; fine oblique, Neotropical; cross-lined, Oriental; dotted, Australian. forms which occur nowhere else, except a few species in America. The absence of all other mammals, except those which might have drifted there or have accom- panied man, is noticeable. The Neotropical region contains the platyrrhine apes, numerous rodents and edentates, and has an almost entire absence of insectivores. The llamas and alpacas are noticeable, while numerous families of birds, among them the humming-birds and the toucans, are characteristic. The Ethiopian region is marked by the presence of the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Kingsley, J. S. (John Sterling), 1854-1929. New York, H. Holt and Company
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