. A manual of zoology for the use of students : with a general introduction on the principles of zoology . Zoology. MARSUPIALIA. 533 Kangaroos" fonn the genus Petrogale, and inhabit the moun- tainous regions of North-western Australia. The Kangaroo-rats {Hypsiprymnus) differ from the true Kan- garoos chiefly in their smaller size, and in the presence of well- developed upper canines (fig. 206, B), and in having scaly tails. They are diminutive nocturnal animals, and they live mostly upon roots. â c. Carpop/iaga. ^-IntermediaXe between the Kangaroos and the typical members of the present s
. A manual of zoology for the use of students : with a general introduction on the principles of zoology . Zoology. MARSUPIALIA. 533 Kangaroos" fonn the genus Petrogale, and inhabit the moun- tainous regions of North-western Australia. The Kangaroo-rats {Hypsiprymnus) differ from the true Kan- garoos chiefly in their smaller size, and in the presence of well- developed upper canines (fig. 206, B), and in having scaly tails. They are diminutive nocturnal animals, and they live mostly upon roots. â c. Carpop/iaga. ^-IntermediaXe between the Kangaroos and the typical members of the present section (the Phalangers) is the Phascolarctosâthe " native sloth " or " bear " of the Australian colonists and the " koala" of the natives (fig. 205). This curi- ous animal is about two feet in length, having a stout body, covered with a dense bluish-grey fur. The tail is wanting; and the feet are furQished with strong curved claws, which enable the animal to pass the greater part of its existence in trees. In. Fig. 206,âA, Dentition of a Carnivorous Marsupial {^kylacinusij showing the long and pointed canines and the trenchant molars and pra^niolars. B^ Dentition of a herbivorous Marsupial iJiypsiprymnHs)^ showing the flat-crowned molars. (After Owen.) c Canine teeth; it Incisors. this it is greatly assisted by the fact that all the feet are pre- hensile, the hallux being opposable, and the digits of the fore- limb divided into two sets, the thumb and index-finger being. 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 Nicholson, Henry Alleyne, 1844-1899. New York : D. Appleton
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