The cryptic antthrush (Chamaeza meruloides), also known as the Such's antthrush, is a species of bird in the Formicariidae family. It is endemic to Atlantic Forest in southeastern Brazil. Although first described almost 200 years ago, it was long overlooked (hence, cryptic) due to confusion with the rufous-tailed antthrush and short-tailed antthrush, which inhabit the same region. The cryptic antthrush is mainly found at altitudes above the short-tailed antthrush, but below the rufous-tailed antthrush. When Nicholas Aylward Vigors described this species in 1825, he based it on two specimens collected by George Such, and this is the reason for the other common name, Such's antthrush.
- Gill, F., Wright, M. & Donsker, D. (2009). IOC World Bird Names (version 2.2). Available at http://www.worldbirdnames.org/ Accessed 30 August 2009
- BirdLife International (2012). "Chamaeza meruloides". IUCN Red List of Threatened Species. Version 2013.2. International Union for Conservation of Nature. Retrieved 26 November 2013.
- Willis, E. O. (1992). Three Chamaeza Antthrushes in eastern Brazil (Formicariidae). Condor 94: 110-116
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