Sphaerotilus natans

Sphaerotilus natans
Submerged S. natans colonies with floating insect in the lower right for scale. Beige color shown is typical of aerated sewage treatment plants, but color may vary through grey toward black downstream of septic sewage or into brighter orange from precipitated red iron oxide.
Scientific classification
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Sphaerotilus

Kützing 1833
Species:
S. natans
Binomial name
Sphaerotilus natans
Kützing 1833

Sphaerotilus natans is an aquatic periphyton bacterial organism associated with polluted water. These tightly sheathed filamentous bacteria colonies are commonly but inaccurately known as "sewage fungus"[1]

  1. ^ Fair, Geyer & Okun p.32-31