Sulphur molly

Sulphur molly
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cyprinodontiformes
Family: Poeciliidae
Genus: Poecilia
Species:
P. sulphuraria
Binomial name
Poecilia sulphuraria
(Álvarez, 1948)
Synonyms
  • Mollienesia sulphuraria Álvarez, 1948

The sulphur molly (Poecilia sulphuraria), locally known as molly del Teapa, is an endangered species of fish in the family Poeciliidae. It is endemic to Mexico, specifically to the Baños del Azufre (Grijalva River basin) near Teapa, Tabasco. The Baños del Azufre are sulfidic springs that contain high concentrations of toxic hydrogen sulfide (H
2
S
). Poecilia sulphuraria has apparently evolved the ability to tolerate the toxic conditions. A few other Poecilia species are known from similar habitats in Mexico.