Clitellarius, Qui clitellatus fert onera. vt Mulus clitellarius. Col. A mule bearing a packe.Clitellarij.Packe horses.
Lewis and Short: Latin dictionary
clītellārĭus, a, um, adj. [clitellae], of or pertaining to a pack-saddle, bearing a pack-saddle: asini, Cato, R. R. 10, 1: mulus, Col. 2, 21, 3; Plaut. Most. 3, 2, 93: homines, id. ib. 3, 2, 94.