The name Gannallius is not attested but the reading is very clear. NPEL cites two occurrences of Gannicus, in Gallia Belgica and Noricum; AS I 1982, Ganapo at Nemausus in Narbonensis; note also Gannascus of the Chauci, Tacitus, Ann. 11.18. Cf. LAN 307-8.
.r...: apart from r, only exiguous traces of the bottoms of letters remain. These would suit the reading Cresc[entis (cf. 128.4 for the century of Crescens) but there are other possibilities.