Ranoidea dahlii — Dahl’s Aquatic Frog
Also known as:
Northern Waterfrog, Dahl’s Olive Treefrog, Dahl’s Treefrog, Floodplain Frog, Northern Lagoon Frog
Fogg Dam Conservation Reserve, Northern Territory, Australia—November 11, 2009
Dahl’s Aquatic Frog (Ranoidea dahlii)
I am pretty sure that this handsome frog is Litoria dahlii, but it has enough differences from the others that I saw the next day that I’m not completely certain. A fine-looking frog by any name though.

I’ve written up an account of this three-week trip to Australia here.

Fogg Dam Conservation Reserve, Northern Territory, Australia—November 12, 2009
Dahl’s Aquatic Frog (Ranoidea dahlii) Dahl’s Aquatic Frog (Ranoidea dahlii)
And here are the first ones that I saw on the next day. I saw these frogs floating in the muck directly below an observation platform that had until a few minutes earlier been the resting grounds of a Green Tree Snake. From this angle it’s easy to see the way that their eyes are angled upward, handy for when the frog is floating just under the water’s surface with only its eyes protruding.
Fogg Dam Conservation Reserve, Northern Territory, Australia—November 12, 2009
Dahl’s Aquatic Frog (Ranoidea dahlii) Dahl’s Aquatic Frog (Ranoidea dahlii)
That night, I saw a few more of these frogs making their way across the dam. They look very similar to American Bullfrogs, but are surprisingly in the Tree Frog family, Hylidae.
Printed references: