24. C. NONO KAL. NOVEMBRIS. 24.
Yes, indeed, another Colman, I'm afraid I can tell you nothing more about either. The Martyrology of Tallaght records a Colmani meic Fuidicain at this date so it looks as if one of this pair had a patronymic attached to his name. Let's leave the last word to the Martyrology of Gorman:
two Colmans reckon ye with them, the gentle ones, I will praise them.