. Elementary text-book of zoology [electronic resource]. Zoology. CHORD AT A. expansion, supplied by the fifth nerve, and apparently enables the animal to be cognisant of vibrations of the air which are too slow to form true sound, and are caused by approaching objects. In a great number of bats the ear- pinna is also enormously developed, though not excessively so in our type. Fig. 332.—The rEcxoRAL Girdle and Fore-Limb of Pteropus. {Ad. nat.). Humerus. Ulna. The bat has lost almost all power of terrestrial locomo- tion, and at best can shuffle clumsily along the ground. This is due to the gr
. Elementary text-book of zoology [electronic resource]. Zoology. CHORD AT A. expansion, supplied by the fifth nerve, and apparently enables the animal to be cognisant of vibrations of the air which are too slow to form true sound, and are caused by approaching objects. In a great number of bats the ear- pinna is also enormously developed, though not excessively so in our type. Fig. 332.—The rEcxoRAL Girdle and Fore-Limb of Pteropus. {Ad. nat.). Humerus. Ulna. The bat has lost almost all power of terrestrial locomo- tion, and at best can shuffle clumsily along the ground. This is due to the great reduction of the hind limbs and especially to the fact that the knees, in connection with the support of the patagium, are bent backwards like the elbows, makmg them unfit for walking. The "wings" are also quite unsuited for the same purpose. The hind limbs are used for grasping boughs, and the bat thus hangs suspended head downwards, often enveloped in its patagia. We have already noticed that the serial types have been evolved from the arboreal, and in this respect the Alega-chiroptera are less specialised types, as their food and resting place are 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; Parsons, John Herbert, Sir, 1868-1957, donor; S. H. Lazarus (Firm); University College, London. Library Services. Edinburgh : E. & S. Livingstone
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectzoology, bookyear1901
