Brachycephalus pulex

Brachycephalus pulex
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Clade: Brachycephaloidea
Family: Brachycephalidae
Genus: Brachycephalus
Species:
B. pulex
Binomial name
Brachycephalus pulex
Napoli, Caramaschi, Cruz & Dias, 2011
Geographic distribution of Brachycephalus pulex

Brachycephalus pulex, also known as the Brazilian flea toad and the Serra Bonita flea toad, is a species of small frogs in the family Brachycephalidae. It is one of more than 40 named species within the genus Brachycephalus. B. pulex is the smallest known vertebrate, with an average length of 7.10 millimetres (0.280 in) in mature males.