From this appears that Battel was familiar with both the chimpanzee and the gorilla, the former of which he terms engeco and the latter pongo - names which ought apparently to be adopted for these two species in place of those now in use.
Falkenstein's gorilla, exhibited at the Westminster aquarium under the name of pongo, and afterwards at the Berlin aquarium, survived for eighteen months.
The great rivers of the sierra are the Maranon, rising in the lake of Lauricocha and flowing northward in a deep gorge between the Maritime and Central Cordilleras for 350 m., when it forces its way through the mountains at the famous Pongo de Manseriche and enters the Amazonian plain.
It breaks through the range at the Pongo de Chasuta and falls into the Maranon.
The Santiago, which enters the Maranon near the Pongo de Manseriche, is formed by the confluence of the Paute, which rises in the province of Azuay, and the Zamora, which has its source among the mountains of Loja.
