The passage uses simile and imagery as figurative language.
Simile: The comparison is made explicit with the words "like" or "as." In this case, "with white teeth and lolling red tongues" is a simile, as it directly compares the wolves to something else, emphasizing their appearance.
Imagery: This refers to the use of vivid and descriptive language that appeals to the senses.
The description of the wolves with "white teeth and lolling red tongues, with long, sinewy limbs and shaggy hair" creates a strong mental image for the reader, engaging the senses and enhancing the overall impact of the description.
In summary, the two figurative languages used in the passage are simile and imagery.