THE SOURCES AND NATURE OF SALIVARY SECRETIONS IN AMPHIBIA

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Abstract
The presence of an amylase in the saliva of the frog and toad has been confirmed and is reported for the first time from the frog's tadpole and adult Xenopus, Salamander and Triturus. Proteases have also been demonstrated in the buccal secretions of the frog and salamander. An attempt has been made to identify histologically the cells responsible for the secretion of these enzymes. The relation between the enzyme secreting tissues and the ciliary tracts on the amphibian palate is described and their possible functional significance is discussed.