Spiralix heisenbergi

Spiralix heisenbergi is a species of minute freshwater snail with an operculum, an aquatic gastropod mollusc or micromollusc in the family Moitessieriidae.

Details
Spiralix heisenbergi is a stygobiotic species endemic to Castellón Province in Spain, where it is only known from Fuente de los Ignacios near Argelita.

This species is named after Walter White (pseudonym Heisenberg), the main character of American television series Breaking Bad. It is thought to be in danger due to its restricted habitat.