It has also been called the Katchan or Cuchan stock, and the Apache, that being the Yuma word for “fighting men”; but we should confine the term Apaches to the Tinneh (Athapascan) tribe so called, and to avoid confusion I shall dismiss the terms Apache-Yumas, Apache-Tontos and Apache-Mohaves, employed by some writers. The Yumas, from whom the stock derives its name, lived near the mouth of the Colorado River. Above them, on both banks of the river, were the Mohaves, and further up, principally on Virgin River, were the Yavapai. Most of the Yumas are of good stature, the adult males averaging five feet nine inches high, well built and vigorous. The color varies from a dark to a light mahogany; the hair is straight and coarse, the eyes horizontal, the mouth large, and the lips heavy. The skull is generally brachycephalic, but there are a number of cases of extreme dolichocephaly (68).[124] Animal totems with descent in the male line prevailed among the Yumas, though they seem for a long time not to have regarded these matters closely. In culture they vary considerably. The Seris or Ceris, who formerly lived in the hills near Horcasitas, but in 1779 were removed to the island of Tiburon, are described as thieves and vagrants, lazy and wretched. They were exceedingly troublesome to the Mexican government, having revolted over forty times. The boats they use are of a peculiar construction, consisting of rushes tied together. As weapons up to recent years they preferred the bow and arrow, and upon the arrow laid some kind of poison which prevented the wounds from healing. Their dialect, which is harsh, is related especially to the western branch of the Yuma stem. They are described as light in color and some of them good-looking, but filthy in habits.[125] The Yumas and Maricopas were agricultural, cultivating large fields of corn and beans, and irrigating their plantations by trenches. It is highly probable that formerly some of them dwelt in adobe houses of the pueblo character, and were the authors of some of the numerous ruined structures seen in southern Arizona. The pottery and basket work turned out by their women are superior in style and finish. A few years ago the Mohaves of the west bank lived in holes in the earth covered with brush, or in small wattled conical huts. For clothing they wore strips of cottonwood bark, or knotted grass. Tattooing and painting the person in divers colors were common. The favorite ornament was shells, arranged on strings, or engraved and suspended to the neck. The chiefs wore elaborate feather head-dresses.[126] The Tontos, so-called from their reputation for stupidity, are largely mixed with Tinné blood, their women having been captured from the Apaches. Though savage, they are by no means dull, and are considered uncommonly adept thieves.