1910–1911
Britannica 11th
Encyclopaedia Britannica · 11th edition
TREE FROG. Many different groups of tailless Batrachians (see FROG) are adapted to arboreal life, which is indicated by expansions of the tips of the fingers and toes, adhesive disks which assist the animal in climbing on vertical smooth surfaces. These disks do not act as suckers, but adhere by rapid and intense pressure of the distal phalanx and special muscles upon the lower surface, which is also provided with numerous glands producing a viscous secretion. The best-known tree frog is the little Hyla arbor ea of…
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- OCR text aligned to scanned pages
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- Vol. 27, pp. 235-235