I used to have three frogs from that genus, representing two species, including the one used for this drug.
It was a really neat frog. It's call, late at night, would boom out "WOP!".
A few seconds later, another booming "Wop!".
Maybe one more would follow, then a few low volume rapid "wop wop wop"s.
I never did lick the frog.
Phyllomedusa bicolor is the frog if anyone is interested.
If anyone, especially DrugS (I used to tell him my frog had a thing for him) wants to hear it....
http://www.erowid.org/archive/sonora...es/bicolor.mp3