The Ptychadena mascareniensis frog (Ranidae) was introduced in 1750 then deliberately spread around the island (Hubert 1881).

All species of Ranidae and Hylidae occurring in Puerto Rico are introduced.

It was removed from the genus because of anatomical differences with the family Ranidae.

The green and golden bell frog has many physical and behavioural characteristics representative of ranids, hence its original classification as Rana.

The green and golden bell frog has many physical and behavioural characteristics representative of ranids, hence its original classification as Rana.

Amphibian species in Puerto Rico belong to four families: Bufonidae (2 species), Hylidae (3), Leptodactylidae (18) and Ranidae (2).

It may be a neurotransmitter.Rana pipiens: A highly variable species of the family Ranidae in Canada, the United States and Central America.

These include around 4,810 species in 33 families, of which the Leptodactylidae (1,100 spp.), Hylidae (800 spp.) and Ranidae (750 spp.) are the richest in species.

These include around 4,810 species in 33 families, of which the Leptodactylidae (1,100 spp.), Hylidae (800 spp.) and Ranidae (750 spp.) are the richest in species.