Shiva Purana
आपस्तम्बो याज्ञवल्क्यो दक्षवाल्मीकिमुद्गलाः ॥ शातातपश्च लिखितश्शिलादः शंख उञ्छभुक् ॥ १६॥
Apasthamba Yajnavalkya Daksha Valmiki Mudgala Shatatapa is also written as a stone-eater and a conch-eater.
english translation
Apastambo yAjJavalkyo dakSavAlmIkimudgalAH ॥ zAtAtapazca likhitazzilAdaH zaMkha uJchabhuk ॥ 16॥
hk transliteration by Sanscript