广东上川岛潮间带软体动物的分布

Distribution of Mollusca in the Intertidal Zone of Shangchuan Island

对上川岛潮间带软体动物进行了采集调查 ,共鉴定软体动物 1 72种 ,分属 5 3科。其中瓣鳃纲 2 0科 81种 ,占总数 47 0 9%,腹足纲 3 3科 91种 ,占总数 5 2 91 %。分析表明 ,其区系特点是以南海亚热带 热带种和东海。

Mollusc in the intertidal zone of Shangchuan island were collected from 2000-2002.A total of 172 species belonging to 53 families,were identified.Among them,81 species belong to 20 families of Lamellibranchia;91 species belong to 33 families of Gastropoda.The results show that the most advantageous species in fauna of mollusk on intertial zone of Shangchuan island are the tropical and subtropical warm water species distributed in the South China Sea,and the subtropical warm water species distributed in the East China and the South China Sea.