Lewis & Short

2. Murena, ae, f. (ante-class form Muraena, but without class. authority), a Roman surname in the gens Licinia, Varr. R. R. 3, 3, 10; Col. 8, 16.
So,

    1. 1. L. Licinius Murena, who was defended by Cicero, in an oration still extant, against the charge of ambitus, Cic. Mur. 7, 15, etc.
    2. 2. A. Terentus Varro Murena, an intimate friend of Cicero, Cic. Fam. 16, 12, 6; 13, 22, 1.
    3. 3. L. Licinius Varro Murena, brother-in-law of Mæcenas, Hor. S. 1, 5, 38.
      Hence, Mū-renĭānus (Mūraen-), a, um, adj., of or belonging to Murænd, Murænian: oratio, i. e. that pronounced by Cicero on behalf of L. Licinius Murena, Mart. Cap. 5, 172, § 525.