Annandale's Shrub Frog

Annandale's shrub frog is one of the smallest frogs in Sri Lanka and one of the smallest in the world, at 12 to 13.4 mm from snout to vent. A single specimen was found in 1911 and described by Annandale in 1913 as Ixalus semiruber. It was not seen alive again for 95 years, and the type specimen was confirmed lost from its museum collection by 2001 (Wikipedia, general species account).

Field research by Madhava Meegaskumbura in 2005 led to its rediscovery near the small Agra-Bopath forest reserve close to Horton Plains National Park. Nationally Data Deficient (Sri Lanka National Red List 2012).