Visible gills

For determination larvae must be larger than 10mm!

With external gills >>>
(newts, salamanders)

Visibility of gills

Without external gills >>>
(frogs, toads)

Attention! Some species of frogs and toads show young larvae (tadpoles) wearing external gills. When they grow larger than 10mm the external gills are covered by a special pocket of skin and become internal gills.


with gills without gills