Matrikas ('Mother Goddesses') are the feminine, personified powers of different Devas (and avatars of Vishnu). For example, the female form (or Shakti) of Vishnu is Vaishnavi, of the man-lion avatar Narasimha it is Narasimhi, of the tortoise avatar Kurma it is Kumari, and of the boar avatar Varaha it is Varahi. There is no scriptural evidence that any of Matrikas are counted as de-facto avatars of Vishnu or any other Deva.