Pipa americana, entire and head
Pipa americana, entire and head
Dendrobates, Nursing frog, tadpole
Dendrobates, Nursing frog, tadpole
Bufo typhonius, entire and head
Bufo typhonius, sketches of young phases
Bufo typhonius, sketches of young phases
Hyla boans, head and three color phases
Hyla boans, head and three color phases