飞云江、鳌江流域的淡水贝类

An Investigation on Freshwater Molluscs in Feiyun River and Ao River

报告了 １９８４ 年在飞云江、鳌江流域淡水贝类的调查结果。标本经鉴定有 ４９ 种（含未定种 ５种），其中腹足纲３２ 种（含未定种２ 种），瓣鳃纲１７ 种（含未定种 ３ 种）。分析了该流域的常见种和偶见种，广生种和狭生种。探讨了该流域淡水贝类的分布区划和经济意义。

This paper presents the results of an investigation on freshwater molluscs in Feiyun River and Ao River carried out in 1984. The identification of specimen indicated that 49 species of molluscs are present, among which 32 spceies (including 2 unidentified species) belong to Gastropoda and 17 species (including 3 unidentified species) belong to Lamellibranchia. All species can be classified into 4 categories: common species and occassional species; widely distributed species and narrowly distributed species. The divisions of molluscan distribution along the rivers are outlined and the economic significance of molluscs is mentioned as well.