Carvitaliums are a closed species, don't make your own.
The Carvitaliums were rational creatures, who love to watch human life, they have two jaws and human-like front paws. They have excellent vision, hearing and speed. With a second mouth Carvitaliums whisper people obsessive thoughts, destroying their minds and drive them crazy.
Each Carvitalium is completely individual, some of them flock together, some live apart from society, very few Carvitaliums are Familiar, guarding their masters.
They live far from the cities, in desolate places, but some prefer to live not too far from the provincial houses and villages