Bates, who found 7000 species of insects in the vicinity of only one of his collecting places on the Amazon (Ega), of which 550 species were of butterflies.
Its principal tributaries are - from the right hand the Jalon with its affluent the Jiloca, the Huerva, Aguas, Martin, Guadalope and Matarrana; from the left the Ega, Aragon, Arba, Gallego, and the Segre with its intricate system of confluent rivers.
Ega de Queiroz (q.v.) founded the Naturalist school in Portugal by a powerful book written in 1871, but only published in 1875, under the title The Crime of Father Amara; and two of his great romances, Cousin Basil '' and Os Maias, were written during his occupancy of consular posts in England.
