一切經音義 14.160

14.160

神龜（愧韋反水介蟲也周禮有六龜尒雅有十龜此則第一神龜也說文云外骨而內肉從它象形以鼉為雄黿鼈黽類皆從它也）。

Divine turtle (神龜: [the character 龜 (turtle)] is 愧 [kui] + 韋 [wei] [guī]; an aquatic shelled creature. The Zhouli has six types of turtles, and the Erya has ten types of turtles; this refers to the first, the divine turtle. The Shuowen jiezi says: 'Bones on the outside and flesh on the inside.' Composed of 它 as a pictograph; it takes the alligator (鼉) as its male mate. Giant turtles (黿), softshell turtles (鼈), and frogs (黽) all derive from 它).