Vocalization of the Sullen toad, Scythrophrys sawayae (Anura: Leptodactylidae: Paratelmatobiinae), from near its type locality, Paraná, Brazil

Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith