Matsya Purana 261.37

261.37

gṛdhrasthā vāyasasthā vā nirmāṃsā vinatodarī.
karālavadanā tadvat kartavyā sā trilocanā .. 261.36

The image of Jogêśvarî should be made with a long tongue, hair, standing on their end adorned with pieces of bones having a set of ferocious teeth, slender waist, wearing a garland of skulls and heads covered with flesh and blood, holding a head in the left hand, soaked in a fatty liquid, holding a Śakti in the right hand, riding on a vulture or a crow, lean, with a scanty stomach, having a ferocious appearance She has three eyes—33 36