flŭvĭālis

I. of or belonging to a river, river-, fluvial: undae, Verg. A. 9, 70; Ov. M. 1, 82: aqua, Col. 6, 22 fin.: harundo, Verg. G. 2, 414: harena, Pall. Oct. 17 fin.: lupus, Col. 8, 16, 4; v. lupus.