Pearson's green tree frog
| Pearson's tree frog | |
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| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Amphibia |
| Order: | Anura |
| Family: | Hylidae |
| Genus: | Litoria |
| Species: | L. pearsoniana |
| Binomial name | |
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Litoria pearsoniana Copland, 1961 |
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| Distribution of the Pearson's green tree frog | |
The Pearson's tree frog (Litoria pearsoniana), also known as the Cascade tree frog, is a species of tree frog inhabiting rainforest creeks from north of Lismore, New South Wales, to Kenilworth, Queensland, with a disjunct population at Kroombit Tops Queensland, Australia.
The mountain stream tree frog (Litoria barringtonensis) may be conspecific to the Pearson's green tree frog (L. pearsoniana). Morphological differences have not been fully studied yet, but visible physical differences between frogs from Barrington Tops and Dorrigo, New South Wales, in comparison to frogs from south-eastern Queensland and northern New South Wales are discussed in a key on the leaf green tree frog page. These are representative of frogs described as L. barringtonensis and L. pearsoniana.
The Pearson's tree frog is a small tree frog growing up to 45 mm in length. Its dorsal surface can range from completely light green, to a mixture of green and brown, or mostly brown in color. Usually, black dots are scattered over the dorsal surface, but in some specimens, these dots may not occur. The belly is white or off white. A light brown/yellow stripe starts at the tip of the snout, across the nostril, eye, and tympanum, and then widens and dissipates over the shoulder. This line is underlined with a thicker dark brown line. The tympanum of this species is brown or mostly brown, not green. The tadpoles of the L. phyllochroa complex (L. phyllochroa, southern leaf green tree frog L. nudidigitus, L. barringtonensis and L. pearsoniana) are very similar in appearance and are difficult to tell apart; range is the best method for distinguishing tadpoles.
This species inhabits flowing creeks in rainforests and wet scleophyll forests in highland and coastal areas. Males call from creek-side vegetation during spring and summer. The call is an "eh-eh-eh-eh-eh-eh-ehk", with the sounds getting faster towards the end of the call, almost forming a trill.
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Wikipedia