Board Thread:Lore Discussion/@comment-1255618-20190427222211/@comment-205.197.219.75-20190516032317

Werebats are not the typical lycanthropes you see. It is possible. Bosmer have shapeshifting abilties. Some bosmer believe Hircine created their kind before their forms were bound. It could be a bosmer latent abiltity or mutation that happens within these vampire clans. Some might end up becoming a werebat for example. I'm guessing like werewolves some cannot transform back because they lose willpower and basically become servents of the vampire clan they are members of. It could be a mutation into the strain. That causes them to gain the ability to shapeshift into a werebat. Maybe some tinkering by the daedric prince of the hunt.

What I do think is they are a kind vampiric manbeast. Maybe some could be non vampires but I imagine most werebats are vampires. In eso the one npc says they are vampiric bosmer that  were not able to transform back. There are werebats in Legends.