Crocodiles come from the realm of Funan, being two or three zhang in length (i.e. 10 to 13 metres), with four feet, like a gecko in shape. They frequently swallow people whole, and the princes of Funan order people to catch these fish and place them in their moats, so that criminals can be thrown to them. If they are worthy of death, the crocodiles will eat them; if they are without guilt, this will be scented and they will not be eaten. Crocodiles are also called hulei; bears are able to control them, grasping their snouts and dragging them to the bank, then pulling them apart and eating them. Also known as gulei, they transform into tigers in autumn, having three talons, and issue forth from the two prefectures Si and Lei in Nanhai; Yingpan Village in Linhai has many of them.
Li Fang 李昉, et al., Taiping guangji 太平廣記 (Extensive Gleanings from the Era of Great Harmony), 10 vols (Beijing: Zhonghua shuju, 1961), x, 464.3822: