Principal English Translation:
a necklace of snail shells
Justyna Olko, Turquoise Diadems and Staffs of Office: Elite Costume and Insignia of Power in Aztec and Early Colonial Mexico (Warsaw: Polish Society for Latin American Studies and Centre for Studies on the Classical Tradition, University of Warsaw, 2005), 177.
Attestations from sources in English:
auh yn jnacaztitech nenecoc pipilcatiujia teucujtlaepcololli: yoan conaqujaia icoiolnacoch, teuxiujtl in tlachioalli, tlaxiuhçalolli: yoan chipolcuzcatl, yn jcuzquj, oc cepa yielpancuzquj iztac cilin = And from both ears hung curved, gold, shell pendants. And they fitted [his ears] with ear plugs made a mosaic of turquoise. And [he wore] a shell necklace. Moreover, his breast ornament was of white seashells. (16th century, Mexico City)
Fr. Bernardino de Sahagún, Florentine Codex: General History of the Things of New Spain; Book 2—The Ceremonies, No. 14, Part III, eds. and transl. Arthur J. O. Anderson and Charles E. Dibble (Santa Fe and Salt Lake City: School of American Research and the University of Utah, 1951), 65 or 67.