The word of the day is batrachian:
prop. batrachīa, modern Latin, < Greek βατράχεια (sc. ζῳ̑α animals), neuter plural of βατράχειος, adj. < βάτραχος frog.
A. adj. Of or pertaining to the Batrachia, esp. frogs and toads.
B. n. An animal of the order Batrachia. (OED)
"Your dapper batrachian hero sits on his lily pad."
- China Miéville, "Forward thinking", 4 & 11 June 2012 The New Yorker