With the exception of the pyramid at Teayo, described above, which seems to be an Aztec ruin, the architectural remains of the Huaxtec and Totonac appear in certain respects to resemble rather those of the Maya, their linguistic relations to the south. At the same time it is advisable to make some mention of them in this place, firstly because the coastal region in this direction had been subjected for some time to Aztec influences, and secondly because Aztec pottery cannot be adequately described without reference to the ceramic art of the Huaxtec and Totonac. Foundation-mounds occur throughout the whole region from the mouth of the Panuco to Vera Cruz, and afford a splendid field to future explorers. The Panuco district shows abundant traces of settlement from very early times; the mounds are of earth, sometimes faced with cut stone, but traces of walls are rare throughout the whole of the Huaxtec region. In the Cerro de Nahuatlan, the pyramids are again of earth or rubble, faced with more or less regularly squared sandstone blocks; some are circular in ground-plan, and the corners of the rectangular ruins are often formed of well-worked monoliths. At Papantla is a remarkable pyramid, faced with cut stone, the distinguishing feature of which is constituted by a series of niches, which may at some time have contained images. This is figured on Pl. XVI, and further description is unnecessary, though it may be said that niches of this character may be found to be a characteristic of Totonac architecture. [Illustration: _PLATE XVI_ _Photo. Prof. Seler_ TOTONAC TEMPLE AT PAPANTLA, VERA CRUZ]