mecacoatl.

Headword: 
mecacoatl.
Principal English Translation: 

a type of very long snake (see the painting of it in the Florentine Codex)
Digital Florentine Codex/Códice Florentino Digital, edited by Kim N. Richter and Alicia Maria Houtrouw, "Book 11: Earthly Things", fol. 88v, Getty Research Institute, 2023. https://florentinecodex.getty.edu/en/book/11/folio/88v/images/0 Accessed 3 November 2025.

Attestations from sources in English: 

The start to the name (from mecatl, rope or cord) suggests a long, rope-like snake. (SW)

themes: 
Animals, Bugs, Insects, Reptiles, Fish, etc.
See also: 
mecatl.
coatl.