IDs are as follows:
Oophaga granulifera
Oophaga granulifera
Phyllobates vittatus
Dendropsophus ebraccatus
Agalychnis callidryas
Silverstonei flotator
We spent the day at with a farmer at La Tarde, in the buffer zone for Corcovado National Park on the Osa Penninsula. It probably rained 2 inches that day. We looked for quite awhile for some auratus "Corcovado", but they weren't having it. We also did some searching for a pair of Fer de Lances that had been sighted on a particular stretch of the trail, but they were nowhere to be seen (my wife was happy about that). All in all we saw about 5 O granulifera, 1 P vittatus, 3 S flotator (as far as dart frogs go).
A few more photos for ya...
Crab-Eating Snake (don't know the latin descriptor)
Rain Frog (Craugastor fitzingeri possibly, but with the number of species in that area, its kind of a crapshoot for me)
Common Basilisk (Basilicus basilicus)
Another shot of an O granulifera