Vryolakas: A messy wine drinker in life, when undead it can be killed by a nail through the navel or pouring oil over the body. It can be deterred by scattering birdseed on the tomb (it'll stop and count the seeds, one per century).
Ramanga: A living vampire whose job it was reportedly to eat the nail parings and drink the spilt blood of those of high rank so that these items could not be used against the nobles. This vampire is from a tribe known as Betsilo, and otherwise is still under research.