[atecuculli]
Conch horn of the Aztec or Nahua peoples of central Mexico, and other pre-Contact cultures. It was called puuaqua in Tarascan and paatáotocuècheni or paniçatàopáni in Zapotecan. The Aztecs called this the instrument of the ‘Wind God Quetzalcoatl; he who breathes life into a void’. It was usually played in pairs, and the shell was about 15 to 20 cm long.
The tecciztli [tecziztli, tezizcatli] was a similar instrument made from the Strombus gigas shell (about 12 to 18 cm long) though examples of clay or bone have been found. It was a priest’s instrument played ceremonially with the quiquiztli and teponaztli to please the ‘Sun God’. Traditionally it was played at midnight to awaken the priests to prayers.
The quiquiztli, made from the larger Fasciolaria gigantea shell (30 cm long or longer), was used for signalling in battle as well as for priestly functions including the sacrificial flaying of men and before the death of slaves....