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Juvenile Tree Frogs

20mm | January 17, 2011 | Cahuita National Park, Limon Province, Costa Rica

I thought the tree frogs shown here were both young Mexican tree frogs, Smilisca baudinii. I asked Brian Kubicki though, and he replied that based on just these images it could be that or possibly Smilisca puma.

15mm

Reference:
[book:0970567804]

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Hypsiboas rufitelus

18mm | January 17, 2011 | Cahuita National Park, Limon Province, Costa Rica

I photographed quite a few frogs in Costa Rica, but I’m having a hard time identifying them.

My first thought for this attractive little one was that it might be a glass frog of some type (family Centrolenidae), because it appears to be somewhat transparent. Brian Kubicki of the Costa Rican Amphibian Research Center was nice enough to respond to an email and identify it instead as an immature tree frog (family Hylidae), Hypsiboas rufitelus.

Looking around for online photos (here’s one of Brian’s), it looks like they must lose that bold red dorsal coloring as they mature. read more

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