fluminalis

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.

flūmĭnālis, e, adj. [flumen],

of or belonging to a river , river - (late Lat.): navigatio, Cael. Aur. Tard. 1, 1, 44: cancri, river crawfish , id. ib. 1, 4, 119.