摘要
本文报导南澳岛的贝类375种,按水平分布可分4组:(1)84种为我国沿海广温广布种;(2)144种分布于东海和南海的亚热带种;(3)141种分布于南海的亚热带—热带种;(4)6种为分布于黄、渤海的温带种。南澳岛的贝类区系大多由暖水性亚热带种组成,属印度—西太平洋区系区中国—日本亚区。
An investigation of molluscan fauna of the Nanao Islands was carried out by ZhanjiangFisheries College and Science and Technology Commisson of Nanao County,from Jun.1987to May 1989.The Nanao Islands of Guangdong Province located at lat.23°23′—23°29′and long.116°56′—117°09′are composed of twenty-two isles.The maximum average surface tem-perature is 25.9℃,the minimum is 14℃.All the specimens collected were examinedand a total of 375 species was identified,belonging to 225 genera and 106 familis.Adetailed list of their distribution in China seas is given in table 1.According to the limits of distribution,the Nanao molluscan fauna may be dividedinto the following four groups:(1)84 species are distributed from the Bohai sea in theNorth to the South China Sea.(2)144 species are distributed in the East China Sea andthe South China Sea.(3)141 species are found in the South China Sea.(4)6 speciesare found in the Bohai Sea and Huanghai Sea.The molluscan fauna of the Nanao Islandscomprises a large number of warmwater subtropical species.We consider the Nan-ao Islands belonging to the Sino-Japanese Subregion(Indo-West-Pacific Region).
关键词
贝类
区系
南澳岛
广东
Nanao Islands
Shells
Molluscan Fauna
