Vocal Behavior of the Elusive Purple Frog of India (Nasikabatrachus sahyadrensis), a Fossorial Species Endemic to the Western Ghats

• Ashish Thomas,

  Affiliation Systematics Lab, Department of Environmental Studies, University of Delhi, Delhi, India

  ⨯
• Robin Suyesh,

  Affiliation Systematics Lab, Department of Environmental Studies, University of Delhi, Delhi, India

  ⨯
• S. D. Biju ,

  * E-mail: sdbiju@cemde.du.ac.in (SB); mbee@umn.edu (MB)

  Affiliation Systematics Lab, Department of Environmental Studies, University of Delhi, Delhi, India

  ⨯
• Mark A. Bee

  * E-mail: sdbiju@cemde.du.ac.in (SB); mbee@umn.edu (MB)

  Affiliation Department of Ecology, Evolution and Behavior, University of Minnesota, St. Paul, Minnesota, United States of America

  ⨯