Amphibians of the Osa Peninsula
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Here you can download the list of amphibian of Osa peninsula,Costa Rica.
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Globally, there are over 8756 species of amphibians. Costa Rica, a small country spanning 51,100 km², is divided by four mountain ranges: Guanacaste, Tilarán, Central, and Talamanca.
The Pacific slope of Costa Rica can be categorized into two climate regions: the dry northern region and the very wet Osa Peninsula and lowlands in the south. It’s important to note that Costa Rica has rainy and dry seasons, which are defined by variations in rainfall rather than temperature differences.
Despite its small size, Costa Rica is home to over 210 amphibian species: 155 species of frogs and toads (Anura), with 29% being endemic; 56 species of salamanders (Caudata), with 65% endemic; and 8 species of caecilians (Gymnophiona). However, more species are expected to increase this list.
The Osa Peninsula, renowned by National Geographic as "the most biologically intense place on earth," is a remarkable treasure of land, water, and life. Once an island floating in the Pacific, the Osa Peninsula evolved in isolation before joining mainland Costa Rica. It is estimated to contain 2.5% of the world’s biodiversity.
we are working on a photographic list of species from Cantón de Osa.
The Pacific slope of Costa Rica can be categorized into two climate regions: the dry northern region and the very wet Osa Peninsula and lowlands in the south. It’s important to note that Costa Rica has rainy and dry seasons, which are defined by variations in rainfall rather than temperature differences.
Despite its small size, Costa Rica is home to over 210 amphibian species: 155 species of frogs and toads (Anura), with 29% being endemic; 56 species of salamanders (Caudata), with 65% endemic; and 8 species of caecilians (Gymnophiona). However, more species are expected to increase this list.
The Osa Peninsula, renowned by National Geographic as "the most biologically intense place on earth," is a remarkable treasure of land, water, and life. Once an island floating in the Pacific, the Osa Peninsula evolved in isolation before joining mainland Costa Rica. It is estimated to contain 2.5% of the world’s biodiversity.
we are working on a photographic list of species from Cantón de Osa.
Caecilidae
Oscaecilia osae (Osa Caecilian)
Dermophiidae
Dermophis occidentalis (Pacific Slender Caecilian)
Gymnopis multiplicata (Purple Caecilian)
Plethodontidae-Salamanders
Bufonidae-True toads
There are nearly 600 species colloquially called toads
Costa Rica is home to 18 especies of toads, and 4 can be found in Osa. Rhinella horribilis is by far the most common in the peninsula.
Costa Rica is home to 18 especies of toads, and 4 can be found in Osa. Rhinella horribilis is by far the most common in the peninsula.
Incilius aucoinae
Female
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Male
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Centrolenidae-Glass Frogs
Glass frogs are characterized by their transparent skin on venter; in many species is possible to see the frog's internal organs. from above, they usually show a translucent green coloration with white, yellow, and black spots or markings.
14 species have been found in our small country and Osa Peninsula is home to 6 species.
14 species have been found in our small country and Osa Peninsula is home to 6 species.
Cochranella granulosa (Granular Glass Frog)
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Espadarana prosoblepon (Emerald Glass Frog)
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Hyalinobatrachium colymbiphyllum (Cricket Glass Frog)
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Hyalinobatrachium valerioi (Reticulated Glass Frog)
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Sachatamia albomaculata (Cascade Glass Frog)
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Teratohyla pulverata (Dusty Glass Frog)
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Craugastoridae-Rain Frogs
There are currently 30 species of Craugastor in CR.
they have long slender fingers with no webbing. Frogs in this family vary greatly in size and appearance (Polymorphism and Polychromatism).
An amazing characteristic of this family is that they undergo direct development, without tadpole stage.
they have long slender fingers with no webbing. Frogs in this family vary greatly in size and appearance (Polymorphism and Polychromatism).
An amazing characteristic of this family is that they undergo direct development, without tadpole stage.
Craugastor crassidigitus (Slim-fingered Rain frog)
Craugastor fitzingeri (Common rain frog)
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Craugastor rugosus (Pacific Broad-headed Rain Frog)
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Craugastor stejnegerianus (Stejneger's rain frog)
Dendrobatidae-Poison Frogs
Allobates talamancae (Striped Rocket Frog)
Dendrobates auratus (Green and Black Poison Frog)
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Oophaga granulifera (Granular Poison Frog)
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Phyllobates vittatus (Golfo Dulce Poison Frog)
Silverstoneia flotator (Rainforest Rocket Frog)
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Hylidae-Tree Frogs
This family represents 676 species in 7 subfamilies ( Hylinae, Dendropsopjinae, Lophyohylinae, Scinaxinae, Cophomantinae) 5 subfamilies and 38 species are found in CR.
Dendropsophus ebraccatus (Hourglass Frog)
Dendropsophus microcephalus (Small-headed Frog)
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Boana rosenbergi (Gladiator Tree Frog)
Adult
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Juvenile
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Scinax boulengeri (Long-snouted Tree Frog)
Juvenile
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Adult
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Scinax elaeochrous (Olive Tree Frog)
Smilisca phaeota (Masked Smilisca)
Adult
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Juvenile
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Smilisca sila (Pug-nosed Tree Frog)
Smilisca sordida (Drab Tree Frog)
Trachycepalus vermiculatus (Milky Frog)
Adult
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Juvenile
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