Alkalihalobacillus alcalophilus

Alkalihalobacillus alcalophilus (formerly Bacillus alcalophilus) is a Gram-positive, rod-shaped species of bacteria. Likely strains of this species have been isolated from highly alkaline waste water. A. alcalophilus is a moderate halotolerant obligate alkaliphile growing at 40 °C and at pH 9–10.5 (and possibly higher) that has been isolated from soil and animal manures.

This species was transferred into the genus Alkalihalobacillus in 2020 after a phylogenomic study to resolve the polyphyly of the genus Bacillus.