Watch List notes:

Maximianus. First reign, A.D. 286-305. AE follis (27.0 mm, 9.63 g, 6 h). Heraclea mint, struck A.D. 296-8. IMP C M A MAXIMIANVS P F AVG, larger laureate head right / GENIO POPVLI ROMANI, Genius standing left, holding patera and cornucopia, chlamys over shoulder; HTB in exergue. RIC 19b; C 184; SRCV 13265. EF/VF , some silvering remains. 

The form of Maximinus' title / obverse legend in RIC is a typo - this is the correct title.