For the first time, over 16 varieties of frogs have been spotted at PTR. Critically-endangered species like great bush frog, star-eyed tree frog, large ghat tree frog, Anamalai night frog, and yellow-eyed bush frog were also spotted in the survey.

As part of the survey, reptiles like Cochin cane turtle, Anamali salea, blue-tailed skink, Travancore kurki and Malabar pit viper were also spotted. For the first time, 14 varieties of reptiles were spotted at PTR.

The survey was conducted on 925 square km area of east and west divisions of the PTR. In the survey, 22 five-member teams participated.

PTR deputy director Shilpa V Kumar, range officers Jyothish, Vinod, Sajeev and Suresh, wildlife assistant Pramod, biologists Patrik and Ramesh, KFRI scientists Sandeep Das and Rajkumar led the survey.

"Based on the survey details, we plan to create a data bank of the amphibians and reptiles at the PTR," said a forest department official.