Salt Glands in the Tongue of the Estuarine Crocodile Crocodylus porosus

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Science  29 May 1981:
Vol. 212, Issue 4498, pp. 1045-1047
DOI: 10.1126/science.212.4498.1045


The apparent absence of salt glands in marine and estuarine Crocodilia has long been a puzzle. However, we have identified glands in the tongue of Crocodylus porosus which exude a concentrated secretion of sodium chloride. The glands are similar in ultrastructure to other reptilian salt glands and undoubtedly play a major role in electrolyte regulation.

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