Boyd’s Bible Dictionary:
The Egyptian species akin to our own
Source of one of the plagues (Ex. 8:2-14). Elsewhere only in Psalm 78:45; 105:30; Revelation 16:13.
Concise Bible Dictionary:
The Marsh Frog
This well-known reptile is very numerous in Palestine. It is only referred to in the O. T. in connection with the second of the plagues in Egypt (Ex. 8:2-14; Psa. 78:45; Psa. 105:30). In the N. T. three unclean spirits like frogs come out of the mouths of the dragon, the beast, and the false prophet (Rev. 16:13). Frogs are remarkable for groveling in the mire, with great noise and activity in the night.