Fiery flying serpent

The fiery flying serpent is a creature mentioned in the Book of Isaiah in the Tanakh.
The term translated as "fiery serpent", , appears elsewhere in the Book of Isaiah to signify the seraphim, the singular form of which is also saraph.

Biblical accounts

Book of Isaiah

Isaiah 14:29: "Do not rejoice, all you of Philistia, because the rod that struck you is broken; for out of the serpent's roots will come a viper, and its offspring will be a fiery flying serpent."
Isaiah 30:6: "The burden against the beasts of the South. Through a land of trouble and anguish, from which came the lioness and the lion, the viper and the fiery flying serpent, they will carry their riches on the backs of young donkeys, and their treasures on the humps of camels, to a people who shall not profit."

Identification

Ancient Israelite seals often co-opted symbology from neighbouring ancient Egypt, and as such, archaeologists have discovered numerous seals which show a uraeus cobra with four wings. This, coupled with the fact that these cobras diverge from the typical Egyptian iconography, which depicted them with only two wings, have been connected by some to the "fiery flying serpents" mentioned in Isaiah, or even to the more specific seraphim seen elsewhere in the text. This identification, however, is not universally accepted.
Assuming the fiery flying serpent to have a biological identification, Ronald Millett and John Pratt identify it with the Israeli saw-scale viper or carpet viper based on several clues from the written sources, such as that the serpents inhabit the Arava Valley, prefer rocky terrain, and are deadly venomous. A Roman account dated 22 AD about the deserts of Arabia indicates the presence of the saw-scale viper, reporting that "there are snakes also of a dark red color, a span in length, which spring up as high as a man's waist, and whose bite is incurable." Other candidates include desert horned viper, the desert black snake or black desert cobra, and the nematode Dracunculus medinensis.