The legend of Matsya does not seem to be narrated in the Shiva Purana. Matsya is however listed as first in the Dashavatara, the ten principle avatars of Vishnu (Part 4: Vayaviya Samhita: Chapter 30.56-58 and 31.134-136). it is also mentioned that Vaivasvata had nine sons, plus a daughter Ila from performance of a sacrifice. Born 'of the parts of Mitra and Varuna', these deities inform Ila that she 'alone will become the son establishing the family of Manu. You will be famous in the three worlds as Sudyumna' (Part 4: Uma Samhita - 36).