The slender mongoose (Galerella sanguinea), also known as the black-tipped mongoose or the black-tailed mongoose, is a very common species of mongoose of sub-Saharan Africa.
The slender mongoose, with up to fifty subspecies, are found throughout sub-Saharan Africa, with the black mongoose of Angola and Namibia sometimes considered a separate species. They are adaptable and can live nearly anywhere in this wide range, but are most common in the savannah and semiarid plains. They are much rarer in densely forested areas and deserts.
As the name suggests, the slender mongoose has a lithe body of 27.5–40 cm (11–16 in) and a long tail of 23–33 cm (9–13 in). Males weigh 640–715 g (22–25 oz), while the smaller females weigh 460–575 g (16–20 oz).
The color of their fur varies widely between subspecies, from a dark reddish-brown to an orange red, grey, or even yellow, but these mongooses can be distinguished from other mongooses due to the prominent black or red tip on their tails. They also have silkier fur than the other African members of their family.