Hypsiboas boans Giant Gladiator Treefrog
Some other names for this species:
Gladiator Treefrog, Rusty Treefrog
Madre Selva Biological Station, Loreto, PeruJanuary 13, 2013
Giant Gladiator Treefrog (Hypsiboas boans) Giant Gladiator Treefrog (Hypsiboas boans)
These are impressively large treefrogs. They earned the name "Gladiator Treefrogs" because the adult males use exposed bones on their thumbs to do battle for territory. This one was, however, just sleeping peacefully on a leaf.

Here is a complete list of the herps I saw in the wild on my 2013 MT Amazon Expeditions trip.

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