The endotrophic nidicolous tadpole of Cycloramphus eleutherodactylus(Miranda-Ribeiro) (Anura: Cycloramphidae).

Cycloramphus Tschudi is the most speciose genus in the family Cycloramphidae, including 30 species endemic to the Atlantic forest Domain in Brazil (Frost 2022). Species in the genus may be classified as saxicolous and terrestrial based on morphology and reproductive mode. Saxicolous are flat-bodied species, with granular skin, and interdigital web (Heyer 1983a), associated with fast-flowing streams in all life history phases. They lay eggs over humid rocks, logs, or crevices in the splash zone, from which semiterrestrial tadpoles hatch (McDiarmid & Altig 1999; Dias et al. 2021) that feed over humid rocks inside the stream or dripping rocky walls (Lutz 1929; Heyer 1983a, b; Haddad & Sazima 1989; Giaretta & Cardoso 1995; Giaretta & Facure 2003; Lima et al. 2010). The single exception to this pattern is C. bandeirensis Heyer 1983a, which share the morphology of adults and larvae, but lives terrestrially, away from streams, in the rocky fields of open high elevation grasslands of Caparaó National Park (Verdade et al. 2019).