Bothrops cotiara

Bothrops cotiara is a species of venomous snake in the family Viperidae. It is endemic to Brazil and Argentina.
Etymology.
The specific name, "cotiara", is taken from one of its common names.
Common names.
"Boicoatiara, boicotiara, boiquatiara, coatiara, jararaca-de-barriga-preta, jararaca-preta," and "quatiara".
Geographic range.
It is found in Argentina in Misiones Province; and in Brazil in the states of Paraná, Rio Grande do Sul, Santa Catarina, and São Paulo.
The type locality is "Núcleo Colonial Cruz Machado, [município de] Marechal Mallet, Estado do Paraná, Brasil".