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| The Green Backed Frog, Hylarana erythraea (Schlegel, 1837). Photographed near Ban Tha Hin, southern Thailand (Lake Songhkla area). It tends to be nocturnal, foraging for insects in low vegetation and is very abundant in rice paddy and as such is best considered a human commensal. The Green Backed Frog is widespread in Southeast Asia and is most likely a complex of species. The Checkered Keelback (a semi-aquatic snake), Xenochrophis frequently preys upon this frog. It has also been placed in the genus Rana. |
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| Schlegel's White Lipped Frog, Hylarana chalconotus (Schlegel, 1837). This frog has also been placed in the genus Rana. H. chalconotus uses the banks of small streams in primary and secondary rainforests in lowland areas. Photographed in southern Thailand. |
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| The White Lipped Frog, Hylarana raniceps (Peters, 1871). This frog has also been placed in the genus Rana. Photographed at Tong Ng Chang Waterfall Park, near Hat Yai Southern Thailand. It is closely related to H. chalconotus. |
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| The Spotted Stream Frog, Hylarana signata/picturata complex. This species complex ranges from southern Thailand and peninsular Malaysia to Sumatra, Borneo, and the Philippines. They inhabit small to medium sized streams in primary and old growth secondary forest. Presumably the two species can be distinguished by a red stripe that runs from the eye lid to the back. It is uninterrupted in in H. signata. Also, the spots on the back are many in picturata, and none to few in signata. This frog is probably H. picturata and it is from near Hat Yai, southern Thailand. It has also been placed in the genera Rana and Pulchrana . |
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| Boulenger's Flagging Frog, Staurois latopalmatus (Boulenger, 1887). Photographed in the Danum Valley, Sabah, Malaysia (Island of Borneo). This is a stream dwelling frog that is often seen on boulders in the stream. Most individuals I have seen are nocturnal but the literature also reports day time activity. Females reach 70 mm. The species is endemic to Borneo. Males use foot flagging displays where the hind leg is extended and the toes are spread to signal other individuals in an environment where waterfalls create much background noise. |
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| Gunther's Flagging Frog, Staurios natator (Gunther, 1859) inhabits the banks of rocky, fast flowing streams in primary forests. Males usually call during the day and this species also uses the foot flagging communication. It is a Borneo endemic. Photographed in the Danum Valley, Sabah, Malaysia (Island of Borneo). |
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| The Dark Sided Frog, Hylarana nigrovittata (Blyth, 1856). This frog has also been placed in the genera Sylviana and Rana. It ranges from Nepal and India to China and southward into Indochina Thailand, and Malaysia. The specimens in the photos where photographed in Khao Luang National Park, in southern Thailand. |
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