Shiva Purana
सुमनाश्च सुवाक्छुद्धः पञ्चमश्छिद्रदर्शकः ॥ स्वतंत्रश्च सुयज्ञश्च कुलीना नामतः स्मृताः ॥ ३८॥
They were of noble birth and were named Svatantra. Suyajña, Sumanas, Suvākśuddha (Suvākṣuddha/Suvākchuddha?) and the fifth one Chidradarśaka.
english translation
sumanAzca suvAkchuddhaH paJcamazchidradarzakaH ॥ svataMtrazca suyajJazca kulInA nAmataH smRtAH ॥ 38॥
hk transliteration by Sanscript