canally

French-canally, and you know what that means -- green-banked, tree-shaded, with a towpath bordering the straight line of water, and here and there a row of broad long canal-boats moving slowly through the shadows.

A Hilltop on the Marne Being Letters Written June 3-September 8, 1914 Mildred Aldrich 1890

Unfortunately that’s a pretty nondescript frog, and Google is full of hits about those ear-canally Chinese frogs that communicate ultrasonically which look different from the frogs in the pictures anyway.

Is There a Herpetologist in the House? - The Panda's Thumb 2006