|Slender mongoose (Galerella sanguinea)|
Four of the species have long been established:
- Angolan slender mongoose, Galerella flavescens
- Somalian slender mongoose, Galerella ochracea
- Cape gray mongoose, Galerella pulverulenta
- Slender mongoose, Galerella sanguinea
A recent addition is the Black mongoose, Galerella nigrata, which now is considered a separate species by many scientists, following genetic analysis. It was previously seen as a variant of Galerella sanguinea.