Biological properties of mucus from land snails (Lissachatina fulica) and freshwater snails (Pomacea canaliculata) and histochemical study of mucous cells in their foot

陆生蜗牛（非洲大蜗牛，Lissachatina fulica）和淡水蜗牛（福寿螺，Pomacea canaliculata）黏液的生物学特性及其足部黏液细胞的组织化学研究