Pass stubfoot toad

Description

Atelopus senex (common name: pass stubfoot toad) is a critically endangered,possibly extinct species of toad in the family Bufonidae.It is endemic to Costa Rica and known from the Cordillera Central and Cordillera de Talamanca at elevations of 1,100–2,200 m (3,600–7,200 ft) asl.Males measure 28–32 mm (1.1–1.3 in) and females 30–43 mm (1.2–1.7 in) in snout–vent length.Males are bluish gray,blue-green,black,or occasionally greenish,without patterning.Females may have patterning consisting of cream,lemon,or lime-coloured lighter areas.