They range in size from small (19 mm) to large (56 mm) and are distributed throughout Asia. “Most Fejervaryan frogs are morphologically very similar and difficult to identify on the basis of external characters alone, creating taxonomic uncertainty in terms of names, identification and systematics,” said Mr. Chennakeshavamurthy. The identification process, including through genetic sequencing, was completed in a year and the discovery was an encouraging biological indicator to the health of the region’s ecosystem, he said.