From your photos I think I'm finally beginning to learn how to identify some of these strange critters. If it's facing left, it's a "squirrel", and if it's facing right, it's a "barking".
Or rather, if the student is facing backwards he needs to face himself in the right direction so he can see straight
First of all, the Barking Treefrog is twice the size of the Squirrel Treefrog (which you can't tell from the photos). However, second, an alert observer would notice that the tympanum (eardrum) of the Barking Treefrog is solid green
, while (or is it cooler here on this forum to say the more pretentious "whilst"?) the tympanum of the Squirrel Treefrog is solid brown
. Third, the side markings of the Barking Treefrog are brown flecked with white
, whilst the side markings of the Squirrel Treefrog are an off-yellow. And finally, the Barking Treefrog has faint spots on his back whilst the Squirrel Treefrog does not.
Thus endeth the lesson on how to look more carefully at the specimens before we cry foul