Vocal Behavior of the Elusive Purple Frog of India (Nasikabatrachus sahyadrensis), a Fossorial Species Endemic to the Western Ghats Thomas, Ashish ; Suyesh, Robin ; Biju, S. D. ; Bee, Mark A. Abstract Publication: PLoS ONE Pub Date: February 2014 DOI: 10.1371/journal.pone.0084809 Bibcode: 2014PLoSO...984809T