The last two species to showcase are the long-nosed mongoose (Herpestes naso) and the ruddy mongoose (Herpestes smithii). The long-nosed mongoose, not to be confused with the common kusimanse, also called ‘long-nosed mongoose’, is another of the species that inhabits west and central Africa, dwelling in the forests of Cameroon, Nigeria, Ghana, etc. It is also a relatively rare and little-known species, and there consequently appear to be pictures of it on the interwebs.
The ruddy mongoose, on the other hand, inhabits India and Sri Lanka. There are plenty of pictures of it (like these two), which show both its resemblance to the more common and slightly smaller indian grey mongoose, and its even greater resemblance to the indian brown mongoose. Like the indian brown, it lives principally in forested rather than open areas, and the main difference seems to be the slightly more reddish colour of its fur, and the black tip on its tail.