Frog

(Heb. tsepharde'a, meaning a "marsh-leaper"). This reptile is
mentioned in the Old Testament only in connection with one of
the plagues which fell on the land of Egypt (Ex. 8:2-14; Ps.
78:45; 105:30).

In the New Testament this word occurs only in Rev. 16:13,
where it is referred to as a symbol of uncleanness. The only
species of frog existing in Israel is the green frog (Rana
esculenta), the well-known edible frog of the Continent.