Louis Francois Fernand Hector de Loys and unknown primate in 1920 during an oil survey expedition in Venezuela.

Louis Francois Fernand Hector de Loys and unknown primate in 1920 during an oil survey expedition in Venezuela.

Louis Francois Fernand Hector de Loys and unknown primate in 1920 during an oil survey expedition in Venezuela.

You may also like...