Wei Guan 衛瓘

The family of Wei Guan[1] were cooking when the rice fell to the floor, each grain transforming into a snail, extending a foot and departing. Before long they were executed by Empress Jia.[2]

From Wuxingji.

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), viii, 359.2846:

衛瓘

衛瓘家人炊。飯墮地。悉化為螺。出足而行。尋為賈后所誅。出五行記

[1] Wei Guan 衛瓘 (220-91 CE), courtesy name Boyu 伯玉, from Anyi 安邑, in Hedong 河東, was a prominent official under the Jin, serving prominently as Grand Protector 太保 but was killed with much of his household after falling foul of the Dowager Empress Jia and a powerful court faction. For his biography, see Fang Xuanling 房玄齡, et al., Jinshu 晉書 (The Book of Jin), (Beijing: Zhonghua shuju, 1974), 36.1055-61.

[2] On Empress Jia (i.e., Jia Nanfeng 賈南風, 256-300 CE), widely blamed for interference in Jin-era politics, see Fang Xuanling 房玄齡, et al., Jinshu 晉書 (The Book of Jin), (Beijing: Zhonghua shuju, 1974), 31.963-66.

Pei Jie 裴楷

Pei Jie of Jin was cooking in his home, heating millet in his steamer, when some of it turned into a fist, some transformed into blood, and some into turnip-seed. Before long he was dead.

From Wuxingji.

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), viii, 359.2846:

裴楷

晉裴楷家中炊。黍在甑。或變為拳。或化為血。或作蕪菁子。未幾而卒。出五行記

Bian Hu’s Strange Corpse 卞壺屍異

Director of the Jin Department for State Affairs Bian Hu died during the Su Jun affair, and was buried in Shangyuan County.[1] Later, when thieves opened his tomb, they saw that Hu was greying at the temples, but he appeared to be alive, his two hands curled into fists, and the armour at the back of both hands pierced through. The Emperor An (r. 396-419 CE) granted ten thousand cash and ordered he be reburied.

Li Rong 李冗, Du yi zhi 獨異志 (Outstanding Fantastic Stories), 上1.12 (Tale 71):

卞壺屍異

晉尚書令卞壺死蘇峻之難,葬在上元縣。後盗發其墓,見壺鬢髮蒼白,面色如生,兩手皆拳,甲穿於手背。安帝賜錢十萬,令改葬焉。

Li Rong 李冗, Du yi zhi, 獨異志 (Outstanding Fantastic Stories) in Du yi zhi, Xuanshi Zhi 獨異志,宣室志 (Outstanding Fantastic Stories, Stories from the Chamber of Dissemination), edited by Zhang Yongqin 张永钦 and Hou Zhiming 侯志明 (Beijing: Zhonghua shuju, 1983)

[1] On Bian Hu 卞壺 (courtesy name Wangzhi 望之, 281-328 CE), a senior official at the Jin court who died in battle resisting the revolt led by Su Jun 蘇峻 (d. 328CE). See https://zh.wikipedia.org/wiki/%E5%8D%9E%E5%A3%BC, and on the revolt: https://en.wikipedia.org/wiki/Su_Jun.

Sima Yi 司馬懿

Prince Xuan of Jin Sima Yi could turn and see his own back.

Li Rong 李冗, Du yi zhi 獨異志 (Outstanding Fantastic Stories),  上1.2 (Tale 11):

司馬懿

晉宣王司馬懿,自顧見背。

Li Rong 李冗, Du yi zhi, 獨異志 (Outstanding Fantastic Stories) in Du yi zhi, Xuanshi Zhi 獨異志,宣室志 (Outstanding Fantastic Stories, Stories from the Chamber of Dissemination), edited by Zhang Yongqin 张永钦 and Hou Zhiming 侯志明 (Beijing: Zhonghua shuju, 1983)