The grey-faced sengi (Rhynchocyon udzungwensis) is a species of elephant shrew that is endemic to the Udzungwa Mountains of south-central Tanzania.

A wide maroon stripe is noted along the back of the animal, as well as jet-black hindquarters with a light brown belly and tail.

[4] This new species was first seen when caught on film in 2005 by Francesco Rovero of the Museum of Natural Sciences in Trento, Italy, who set up camera traps and captured an unfamiliar elephant shrew.

The new species was given the binomial name Rhynchocyon udzungwensis (meaning 'snouted dog from Udzungwa'), and the English name grey-faced sengi from its physical characteristics.

Expanding human populations in Africa, especially in Tanzania, will inevitably result in various pressures on the dwindling forests there and the species that live within that habitat.

Other theories to the endangerment of the species may be due to hunting by local tribes, but this cannot be proven and was not seen while Rathbun and Rovero visited Tanzania.

[citation needed] To save the species, the public is informed of the importance of preserving the sengi's natural habitat.

The habitat also falls between two nature reserves, which can allow the species to have extra protection from hunters and the ever-expanding human population.

Since the nature reserves do not allow hunting or destruction of the forest and animals, the grey-faced sengi is almost guaranteed protection from the outside world.