Found this via means I shall not reveal: the ahuizotl page from Wikipedia now includes the following

Ahuizotl feature prominently in French author Aliette de Bodard’s debut novel Servant of the Underworld, in which they are real creatures living in the water of Lake Texcoco, feeding on the eyes and fingernails of the drowned.

Look, Mum, I’m (almost) famous :=)

(a hearty thank-you to whoever edited the page)