Shiva Purana
कालश्चांजनसंकाशः कृतांतश्च भयानकः ॥ मारीचोग्रमहामारी कालरात्रिश्च दारुणा ॥ ५४॥
Black in colour resembling collyrium he is very terrifying. Mārī, Ugramahāmārī and Kālarātri are terrible spirits attending on Yama.
english translation
kAlazcAMjanasaMkAzaH kRtAMtazca bhayAnakaH ॥ mArIcogramahAmArI kAlarAtrizca dAruNA ॥ 54॥
hk transliteration by Sanscript