This refers to these types of animals in general. Alternate translation: "where lionesses and lions dwell, and where there are vipers and serpents" (See: [[rc://en/ta/man/translate/figs-genericnoun]])
Here the word "fiery" probably refers to the serpent's poisonous bite and the word "flying" refers to its quick movements. See how you translated this in [Isaiah 14:29](../14/29.md).