. Elementary text-book of zoology. SS8 CHORD ATA. extra articular processes. The sub-order is entirely re- stricted to the Neogffian realm (South America). Family I.—Bradypodidse or Sloths.—Purely arboreal, leaf-eating animals ; Bradypus has been described. We may recall (l) the adapta- tion to arboreal habit; {2) the low eutherian characters shown in a bi- partite uterus, occasional presence of a complete coracoid and varying number of cervical vertebrie. They are found only in forests of South America. Family II.—Megatheriidae or ground sloths.—Extinct terrestial forms, occurring backwards f
. Elementary text-book of zoology. SS8 CHORD ATA. extra articular processes. The sub-order is entirely re- stricted to the Neogffian realm (South America). Family I.—Bradypodidse or Sloths.—Purely arboreal, leaf-eating animals ; Bradypus has been described. We may recall (l) the adapta- tion to arboreal habit; {2) the low eutherian characters shown in a bi- partite uterus, occasional presence of a complete coracoid and varying number of cervical vertebrie. They are found only in forests of South America. Family II.—Megatheriidae or ground sloths.—Extinct terrestial forms, occurring backwards from the Pleistocene. They are closely allied to the sloths, but show certain resemblances to the anteaters. They 'Fig. 382.—Tamandua Anteater (Tamandiia tetradactyla.). iila^ls^^' (From Peoc. Soc, 1871., Pl. xuii.) were apparently huge hairy monsters, that fed upon leaves of trees. Megatherium walked upon the outer side of the feet, on pads covering the fifth digit of the front-limb and the fourth and fifth of the hind-limb. The second, third and fourth digits of the front-limb and the third of the hind-limb were armed with huge claws. Mylodon was another well- known form which may possibly still survive in parts of South America. Family III. — Myrmecophagidae or Anteaters.—These show a similar adaptation to anteating to that already noticed in Echidna. There are no teeth, the mandible is rudimentary, facial region tapering and terminating in a small round mouth. The tongue is very long and copiously supplied with saliva from the large submaxillary glands. The tail is usually long and in the tree-anteaters is prehensile. 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 Masterman, Arthur Thomas. Edinburgh, E. & S. Livingstone
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