All have round, sloping snouts, robust forearms, long, unwebbed fingers, and large webbed feet.
"A Review of the Frogs of the Hyla bistincta Group"
William E. Duellman
From these tufts project long and very slender shafts, unwebbed, and as fine as threads, curling elegantly, six on each side.
"The Romance of Natural History, Second Series"
Philip Henry Gosse