Harivamsha 3.91

3.91

sthalajāḥ pakṣiṇo 'bjās ca dharāyāḥ prasavaḥ smṛtaḥ
anāyuṣāyāḥ putrās tu pañcāśat sumahābalāḥ |
surato guṇavṛttaś ca vikṣaro 'tha nṛpas tathā |
gās tu vai janayām āsa surabhī mahiṣī tathā //

Land birds and aquatic birds are considered the offspring of Dharā.
And the sons of Anāyuṣā were fifty, exceedingly powerful: / Surata, Guṇavṛtta, Vikṣara, and then Nṛpa.
Surabhī gave birth to cows, and also the she-buffalo;