The _Zaparos_ constitute one of the most extended and numerous nations in the upper valley of the Amazon. They dwell near or adjacent to the Jivaros on the south, and as their name is variously spelled Zaparos, Xeberos and Jeberos, they have at times been confounded with them. They differ, however, not only in language, but in appearance and temperament. The Zaparos are lighter in color, smaller in stature, with oblique eyes, large mouths, and expanded nostrils.[431] Their disposition is indolent and easy tempered, and their abilities inferior. This is seen in the construction of their houses and the appearance of their fields, which do not compare advantageously with those of the Jivaros; but they display some ingenuity in manufacturing clothing from the bark of a species of _Ochroma_, and they are skillful in concocting the urara poison, in making blow-pipes, and are daring boatmen. In 1632 they lived near the Omaguas, on the river Curary, and their number was estimated by the missionaries at 10,000. At present their main body dwells between the rivers Pastaza and Napo and along the Marañon between the rivers Zamora and Morona. In 1850 Osculati estimated their number at over 20,000, which is certainly in excess of their present representatives. The many small tribes into which they are divided, and the confused orthography of the names applied to them, render it difficult to offer a satisfactory list. It seems tolerably certain that the ancient “Andoas” were the Zaparos of the upper Pastaza,[432] and equally sure that the Encabellada, the Iebera, the Simigae and the Jinori languages, all supposed by Hervas to be independent stocks,[433] were spoken by members of the Zaparo family. The Iquitos are another populous branch, sometimes supposed to be distinct. The Zaparo language is agreeable to the ear, partaking of the phonetic character of the Brazilian idioms. The Italian traveler, Osculati, has furnished a very satisfactory account of it, both grammatical and lexicographical,[434] and there are vocabularies by other voyagers. I offer the following alphabetic list of the sub-tribes of the Zaparos, without attempting to define their several positions in the general district referred to: ZAPARO LINGUISTIC STOCK.