Marcellinus introduces himself as leo and antistes in a relief of Mithras killing the bull discovered in 1862, probably in via di Borgo, on the western slope of the Esquiline. The monument was engraved with an inscription that mentions him as leo and atistes together with other two persons, probably members of the same comunity in Rome, Guntha and Placidus.
The workmanship of the relief, the names of the dedicators and the spelling sacrathis [sic] betray the servile and modest status of these men, who probably belonged to the same community.
This relief of Mithras Tauroctonos from Rome bears the inscription of three brothers, two of them lions.
To the pure invincible god Mithras and his initiates, have placed this offering Placidus, Marcellinus, Leo (and) antistes, and Guntha, Leo.