''Hylodes fredi'' is a species of

frog A frog is any member of a diverse and largely Carnivore, carnivorous group of short-bodied, tailless amphibians composing the order (biology), order Anura (ανοὐρά, literally ''without tail'' in Ancient Greek). The oldest fossil "proto-f ...

in the family

Hylodidae Hylodidae, commonly known as giant Neotropical torrent frogs, is a family of frogs native to Brazil and northern Argentina Argentina (), officially the Argentine Republic ( es, link=no, República Argentina), is a country in the souther ...

, endemic to the island of

Ilha Grande Ilha Grande ( "Big Island") is an island located off the coast of Rio de Janeiro state, Brazil. The island, which is part of the municipality of Angra dos Reis, remains largely undeveloped. For almost a century it was closed by the Brazilian gov ...

Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...

Description and biology

The tadpoles of ''Hylodes fredi'' whose

limb bud The limb bud is a structure formed early in vertebrate limb development. As a result of interactions between the ectoderm and underlying mesoderm, formation occurs roughly around the fourth week of development. In the development of the human em ...

s have not yet formed reach a maximum size of 75.3 millimeters. Their color ranges between gray and brown; additionally, brown splotches can be seen on the body. The abdomen is slightly transparent, and the caudal fins are opaque. Adult males have been observed in calling activity throughout almost the whole year. ''et al.'' 2010: Tadpole of ''Hylodes fredi'' (Anura; Hylodidae), a frog endemic to an Atlantic Forest island (Ilha Grande, Rio de Janeiro State), Brazil
''Zootaxa''
2640: 62-64
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References

Hylodes Endemic fauna of Brazil Amphibians of Brazil Amphibians described in 2007 {{hyloidea-stub