tlalmazacoatl.

a small, black, slippery creature with a shell that lives in the hot lands; it is found in the maize fields (tlalli, milli); it comes out when it rains; it has small horns, which is why the name is mazatl (deer) in part; it exudes a varnish-like liquid that can sicken and kill people who eat it; it is also called "tzompilacauaztli" (tzompilacahuaztli)

Digital Florentine Codex/Códice Florentino Digital, edited by Kim N. Richter and Alicia Maria Houtrouw, "Book 11: Earthly Things", fol. 83r, Sahagún, Bernardino de. Florentine Codex: General History of the Things of New Spain. Transcribed and translated with notes by Arthur J. O. Anderson and Charles E. Dibble. 2nd rev. ed. Santa Fe, NM: School of American Research / University of Utah Press, 1950–82. Getty Research Institute, 2023. https://florentinecodex.getty.edu/en/book/11/folio/83r Accessed 31 October 2025.