中国海域水螅水母类区系的初步分析

世界海洋水螅水母类区系,自十九世纪末随着海洋考察的发展就开始大量的调查研究,相继发表了大量的论文报告和专著,本世纪以来,调查研究向远洋深海发展。近期来,较系统的工作是Kramp(1959,1961,1965,1968),相继发表了几部专著,详细记述和综述采自大西洋、印度洋、太平洋及其邻近水域的水螅水母,并进行了动物地理区划15,18,19]。连同早期Mayer(1910)和Russell(1953,1970)等人的工作,为世界海洋水螅水母类分类区系研究打下了良好的基础。据我们初步统计,全世界海洋水螅水母类约有450种左右(不包括可疑种和未定种)。

A PRELIMINARY ANALYSIS ON THE HYDROMEDUSAE FAUNA OF THE CHINA SEA AREAS

1.In the present paper,synthetic records of 138 species of the Hydromedusae from the China Sea Areas (Table 1.),belonging to 71 genera in 32 families,has been reported.There have been found 55 species belonging to Anthomedusae,57 to Leptomedusae,8 to Limnomedusae,10 to Trachymedusae,and 9 to Narcomedusae.2.The number of species found along the coastal waters of China decreases with the increase of latitudes.According to the present records,there are 13 species found in the Pohai,55 in the Yellow Sea,95 in the East China Sea Areas,95 in the South China Sea.Based on the Zoogeographical distribution of the Hydromedusae of the China Sea Areas,23 species are West-Pacific-elements,25 are Indo-West Pacific elements,34 are Atlantic and Pacific elements,and 56 are widely distributed over the three great oceans.