“... and cold Valdivian forest of the Pelada mountains (Formas, 1972). The acquisition of tadpoles...”

“... southwestern representative of the so-called “narrow- skulled” line of the genus (Blair, 1972), On the other...”

“..., a typical Patagonian environment (Cei, 1969a,b; Ruiz Leal, 1972). Nevertheless, there is a general...”