Bonnacon /bonacon, bonasus/ 10.5X6.5 cm
The story of the bonnacon is one of the latest insertions into the treatise, derived from Solinus /40.10/ and Pliny /VIII.15.16/. Isidor does not mention it. Pseudo-Hugh /III.5/ and Albert the Great /XXII.1.12/ give the description of the bonnacon.
The bonaccon lives in Asia, he has a bullish head and his body is covered with thick hair, his horns are curled into spirals. As he runs away from his pursuers, he empties his stomach over an area of three acres, and trees and shrubs in that area catch fire stopping his pursuers.