The smallest frog in the Southern Hemisphere is the Gold Frog, or Brazilian Psyllophryne Didactyla. Adult Gold Frogs measure grow to only 9.8 millimeters in body length. That's about one centimeter or about 3/8 of an inch. About the same size, the Eleutherodactylus iberia is the smallest frog in the Northern Hemisphere, it was discovered in 1996 in Monte Iberia, Cuba. It doesn't have a common name yet, but its scientific name is Eleutherodactylus iberia.

Gold Frog

Eleutherodactylus Iberia

                                                                                                                                                                                              From:  www.nationalzoo.si.edu