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The same moral is inculcated by the study of every other order of Tertiary monodelphous Mammalia. Each of these orders is represented in the Miocene epoch: the Eocene formation, as I have already said, contains Cheiroptera, Insectivora, Rodentia, Ungulata, Carnivora, and Cetacea.
The chiguire, which swims with the greatest agility, utters a short moan in running, as if its respiration were impeded. It is the largest of the family of rodentia or gnawing animals. It defends itself only at the last extremity, when it is surrounded and wounded.
At Coy Inlet the high plain trends inland, leaving flat-topped outliers. This formation is highly remarkable, from abounding with mammiferous remains, which have not as yet been examined by Professor Owen, but which include some large, but mostly small, species of Pachydermata, Edentata, and Rodentia.
A writer in the Ceylon Miscellany mentions, that they are often to be seen "crossing rivers and frequently mud-brooks near Chilaw; the adjacent thickets affording them shelter, and their food consisting of aquatic reptiles, crabs, and mollusca." Hodgson describes as dwelling in burrows, and being carnivorous and ranivorous? Vide Journ. As. Soc. IV. RODENTIA. Squirrels.
The Porcupine is another of the rodentia which has drawn down upon itself the hostility of the planters, from its destruction of the young coconut palms, to which it is a pernicious and persevering, but withal so crafty, a visitor, that it is with difficulty any trap can be so disguised, or any bait made so alluring, as to lead to its capture.
When in this state the meat is, of course, quite uneatable; but the Gauchos assert, that if buried for some time in fresh earth, the taint is removed. I have somewhere read that the islanders in the north of Scotland treat the rank carcasses of the fish-eating birds in the same manner. The order Rodentia is here very numerous in species: of mice alone I obtained no less than eight kinds.
Among the twelve or fourteen species of Mammalia which are said to have been found in the Purbecks, not one is a member of the orders Cheiroptera, Rodentia, Ungulata, or Carnivora, which are so well represented in the Tertiaries. No Insectivora are certainly known, nor any opossum-like Marsupials.
A tree so much extended as this ash of course had its parasites and rodentia clinging to it and gnawing it; but the brave old ash defied them all, and is to wave its skywide umbrage even over the ruins of the universe, after the dies irae shall have passed. So sings the Voluspa. This tree is a worthy type of the Teutonic race, so green, so vigorous, so all-embracing.
They are perfectly harmless, and live on small animals, chiefly the rodentia; occasionally the steinbuck and pallah fall victims, and are sucked into its comparatively small mouth in boa-constrictor fashion. One we shot was 11 feet 10 inches long, and as thick as a man's leg.
Even the comparatively scanty Eocene fauna yields examples of the orders Cheiroptera, Insectivora, Rodentia, and Perissodactyla; of Artiodactyla under both the Ruminant and the Porcine modifications; of Caranivora, Cetacea, and Marsupialia.
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