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File-Eared Tree Frog/Borneo Eared Frog Also known as the Borneo Eared Frog, this large tree frog inhabits lowland rainforest up to elevations of around 400 metres. It is most commonly found grouped around suitable breeding ponds, clinging to nearby vegetation a few metres from the ground. The species is easily identified by its large size and by the prominent ridges which lie above the eye and external ear-drum or tympanum. Another flap of skin extends horizontally beneath the tympanum. Its dorsal surface is pale yellow brown adorned with dark brown stripes. The flanks show similar colour and patterning but the dark stripes are more thin. On the inner thighs and legs there is strong black banding on a white background. Its eyes are large with a horizontal iris. Like other species of tree frog, their eggs are fertilized and develop in foam nests above suitable water bodies. The tadpoles will hatch and drop into the water below, or get washed down by heavy rain. Full-grown tadpoles may reach 6 cm in length.<br />
 Borneo eared frog,File-Eared Tree Frog,Frog,Geotagged,Malaysia,Polypedates otilophus,Sarawak,Summer Click/tap to enlarge Species introCountry intro

File-Eared Tree Frog/Borneo Eared Frog

Also known as the Borneo Eared Frog, this large tree frog inhabits lowland rainforest up to elevations of around 400 metres. It is most commonly found grouped around suitable breeding ponds, clinging to nearby vegetation a few metres from the ground. The species is easily identified by its large size and by the prominent ridges which lie above the eye and external ear-drum or tympanum. Another flap of skin extends horizontally beneath the tympanum. Its dorsal surface is pale yellow brown adorned with dark brown stripes. The flanks show similar colour and patterning but the dark stripes are more thin. On the inner thighs and legs there is strong black banding on a white background. Its eyes are large with a horizontal iris. Like other species of tree frog, their eggs are fertilized and develop in foam nests above suitable water bodies. The tadpoles will hatch and drop into the water below, or get washed down by heavy rain. Full-grown tadpoles may reach 6 cm in length.

    comments (5)

  1. Wonderful find, Albert, and good job on the ID! Posted 8 years ago
    1. Thanks, Ferdy.
      A few species of Frogs are practically guaranteed to be seen at the Frog Pond of Kubah National Park if you go for night walk there. Its an amazing place for those who are into Frogs.

      The Sound at the Frog Pond at dusk is also pretty amazing. An Australian guy recorded the sound and entered it for a competition and it won the 'The Most Beautiful Sound in the World' in the year 2013. Check out the sound here :

      http://wildambience.com/dusk-by-the-frog-pond/
      Posted 8 years ago
      1. That is a beautiful and very deep sound indeed! Thanks for the link. Posted 8 years ago
        1. Yes, it really is and that's the sound/music you will hear every day at dusk if you go to Kubah National Park and visit the Frog Pond.

          Let me know if you are coming back to visit Malaysia again, will be happy to join you :D
          Posted 8 years ago
          1. Thank you for that kind offer :) Posted 8 years ago

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''Polypedates otilophus'' is a species of frog in the family Rhacophoridae. It is endemic to Borneo where it is widespread and found in Brunei, Indonesia, and Malaysia, typically in the lowlands but sometimes as high as 1,100 m above sea level. This species has prominent, sharp ridges behind the eye, above the ear, referred to in its names.

Similar species: Frogs
Species identified by Albert Kang
View Albert Kang's profile

By Albert Kang

All rights reserved
Uploaded Sep 11, 2016. Captured Jul 6, 2015 22:24 in Jalan Ke Puncak Serapi, Petra Jaya, 93050 Kuching, Sarawak, Malaysia.
  • NIKON D5200
  • f/19.0
  • 1/180s
  • ISO200
  • 120mm