一切經音義 6.170

6.170

蝸蠃（上古華反小螺也魯和反下盧和反經中作螺俗字也非正體爾雅云附蠃音夷蝓也郭璞云即蝸牛也說文亦云蠃蝸牛類而形大出海中種種形狀而不一也）。

Snails and spiral shells (蝸蠃: for the first character, the fanqie is 古華 [guā], a small snail (魯和 [luó]). For the second character, the fanqie is 盧和 [luó]. In the sūtra it is written 螺, a vulgar character, not the orthodox form. The Erya says: '附蠃 (pronounced 夷蝓 [yíyú]).' Guo Pu says: 'That is the snail (蝸牛).' The Shuowen also says: 'The 蠃 is of the snail class but larger in shape, produced in the sea, with diverse and non-uniform shapes').