Alsodes is a genus of alsodid frogs found in Chile and Argentina. It is the most species-rich frog genus in Patagonia. Common name spiny-chest frogs has been coined for them.

Description

Characteristic for this genus is that during the reproductive season, adult males have thorny structures on the fingers and rounded spiny patches on the chest. Breeding takes place in high-elevation streams, and tadpoles have slow development, including overwintering under ice cover.

Species

There are 19 species in the genus: • Alsodes australis Formas, Úbeda, Cuevas & Nuñez, 1997 • Alsodes barrioi Veloso, Diaz, Iturra & Penna, 1981 • Alsodes cantillanensis Charrier, Correa-Quezada, Castro, and Méndez-Torres, 2015 • Alsodes coppingeri (Günther, 1881) • Alsodes gargola Gallardo, 1970 • Alsodes hugoi Cuevas & Formas, 2001 • Alsodes igneus Cuevas & Formas, 2005 • Alsodes kaweshkari Formas, Cuevas & Nuñez, 1998 • Alsodes montanus (Lataste in Philippi, 1902) • Alsodes monticola Bell, 1843 • Alsodes neuquensis Cei, 1976 • Alsodes nodosus (Duméril & Bibron, 1841) • Alsodes norae Cuevas, 2008 • Alsodes pehuenche Cei, 1976 • Alsodes tumultuosus Veloso, Iturra & Galleguillos, 1979 • Alsodes valdiviensis Formas, Cuevas & Brieva, 2002 • Alsodes vanzolinii (Donoso-Barros, 1974) • Alsodes verrucosus (Philippi, 1902) • Alsodes vittatus (Philippi, 1902)