Higher Vampires.
Many experts include alps, mulas, katakans, bruxae, and nekurats as members of this group. These species indeed possess several unique traits not shared by their lesser cousins, and thus are commonly called higher vampires. They are resistant to sunlight and most can mask their true natures and pretend to be human, which aids them in hunting or evading pursuit. Many are also capable of transformation and possess telepathic powers, making them formidable foes. Despite all these abilities, however, they are not true higher vampires.
Genuine higher vampires are a separate, extremely powerful breed, commanding great powers are sometimes unique to particular specimens. They are masters of the art of camouflage and in most cases appear nearly identical to humans. Only their their teeth, and the fact that they cast no shadows and have no reflections in mirrors, can reveal their true nature. I have even met one higher vampire whose presence did not trigger a reaction from my witcher medallion. Besides being supernaturally fast and agile, higher vampires can also assume the form of a giant bat, become invisible, and use their gaze to mesmerize their victims or put them to sleep. They are invulnerable to sunlight, fire, and silver, and have unbelievable regenerative powers which allow them to return to life even after beheading, dismemberment, or incineration- though in such cases the process may take many decades.