Markandeyapurana 54.31

54.31

bhadrāśve 'śvaśirā viṣṇurbhārate kūrmasaṃsthitiḥ /
varāhaḥ ketumāle ca matsyarūpastathottare //

In Bhadrāśva Viṣṇu is figured with a horse’s head; in Bhārata[23] he has the shape of a tortoise; and he is like a boar in Ketumāla; and he has a fish’s form in the north. In all those four countries, worldly affairs are governed by the arrangement of the constellations, O brāhman; the people there study the influence of the planets.