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Amphibians
     

 The rain forest is the habitat parexcellence for amphibians. It is not surprising therefore that half the total number of amphibian species in sri Lanka and nearly half the endemic amphibian are represented in Sinharaja. These amphibians are mainly frogs and toads and a single limbless form (Table 12).

 

  Wrinkled Frog (Rana corrugata)
     
  Greater Hourglass Tree Frog (Rhacophorus cruciger)
     
  Reed Frog (Rana greeni)
     
  Torrent Toad (Buffo kelaartii)

 

Common Name

Species Name

  *Wrinkled Frog  Rana corrugata
   Sri Lanka Reed Frog  Rana greeni
  *Lesser Wood Frog  Rana aurantiaca
  *Slender Wood frog  Rana gracilis
**Guenther's Cliff Frog  Nannophrys guentheri
  *Sharp nosed Tree Frog  Rhacophorus nasutus
   Small-eared Tree Frog  Rhacophorus microtympanum 
  *Greater Hourglass Tree Frog  Rhacophorus cruciger
  *Wrinkled Tree Frog   Philautus schmardanus
   Variable Tree Frog  Philautus variabilis
   Lesser Sharp-nosed Tree Frog  Philautus nasutus
  *Red Ramanella  Ramnella palmata
   Common Toad  Bufo melanostictus
  *Torrent Toad  Bufo kelaartii
  *Yellow-banned Caecillian  Ichthyophys glutinosus
*Endemic species   **Endemic genera



One of the commonest frogs in the forest is the Wrinkled Frog heard frequently from marshes and streams. Several species of tree frogs and the Reed frog while has a call similar to that of a bird can be heard distinctively at night.

                   The moist environment is conducive for the Sharp-nosed Tree Frog to lay its eggs in a nest of foam on the underside of Cardamom leaves overhanging a stream. This enables the young tadpoles to drop straight into the water when they hatch out. The Lesser Sharpnosed Tree Frog adopts a different strategy. It lays eggs on leaf little where rain water has accumulated. The life cycle is completed within the egg thereby avoiding a free swimming tadpole stage. Others such as Ramnella palmata live their whole life cycle in tree rot holes filled with rain water. The Guenther's Cliff Frog inhabits vertical rock faced covered with dripping water. the young tadpoles are adapted to living on the wet rock face. These strategies among the amphibia could only be possible in an ever-wet environment. The discovery of Guenther's Cliff Frog in 1982 is particularly significant because its sighting at Sinharaja is the first since the type specimen was collected in 1890.

                   The Yellow-banded Caecilian the only limbless amphibian recorded at Sinharaja, inhabits marshy edges and lives under the wet earth.