Bothrops fonsecaiBothrops fonsecai, also known commonly as Fonseca's lancehead, is a species of venomous snake in the family Viperidae. The species is endemic to Brazil.EtymologyThe specific name, fonsecai, is in honor of Dr. Flavio da Fonseca, who was head of the laboratory of parasitology at the Instituto Butantan in São Paulo, Brazil.Geographic rangeB. fonsecai is found in the Brazilian states of Minas Gerais, Rio de Janeiro, and São Paulo.HabitatThe preferred natural habitat of B. fonsecai is forest, at altitudes up to.DescriptionAdults of B. fonsecai have a total length of about.BehaviorB. fonsecai is terrestrial.DietB. fonsecai preys upon small mammals.ReproductionB. fonsecai is ovoviviparous. Litter size is 14 or less.