Hazara torrent frog
© 1991 Muhammad Sharif Khan (1 of 1)
In the tadpole, the anteroventral oral disc is bordered with two rows of long papillae which are widely interrupted anteromedially; posteriorly it is uninterrupted and has 3 rows of papillae. Anterior labium has 8 tooth rows of which 7 are medially interrupted. The posterior labium has 3 rows of teeth of which 2 are interrupted. The labial tooth row formula is 8 (7)/3(2). The beak is large, with preoral half strongly arched and finely serrated, overhanging similar postoral half (Khan and Malik 1987a). Total length of the tadpole 75 mm, tail 65 mm.
Distribution and Habitat
Country distribution from AmphibiaWeb's database: India, Pakistan
Life History, Abundance, Activity, and Special Behaviors
The tadpole is a typical Himalayan torrenticole habits (fast-moving aquatic habitats). It feeds on algal growths on the surface of submerged stones. Tadpoles of Euphlyctis cyanophlyctis also occur in these pools. During rainy season, to avoid the fast flow of water, the tadpoles either migrate into crevices under stones where the force of flow is minimum, or hold on to the surface of rocks with the oral disc which acts as an effective sucker giving the tadpoles a very firm hold.
For references in the text, see here
Khan, M.S. and Malik, S.A. (1987). ''Buccopharyngeal morphology of tadpole larva of Rana hazarensis Dubois and Khan 1979, and its torrenticole adaptations.'' Biologia, 33, 45-60.
Written by M. S. Khan (typhlops99 AT hotmail.com), Herp Lab, Rabwah, Pakistan.
First submitted 2002-03-19
Edited by vtv (2010-03-16)
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