Using Savage’s (2004) key and photographs, my best guess for this little herp is Craugastor polyptychus.  The former Eleutherodactylus group is exceptionally diversity and difficult to key… especially when the specimen in question was caught 2500 miles away a month ago and not retained, but merely photographed.  Whatever it is, I’m sure it’s new for me, which makes my lack of a confident identification that much more frustrating.