中国的淡水水母

FRESHWATER MEDUSAE IN CHINA

淡水水母为W.Sowerby于1880年6月9日于英国伦敦Regent公园一人工水池中首次发现,标本经E.R.Lankester研究,订名为Craspedacusta sowerbyi,于同年发表。自此以后才在世界各国陆续发现,主要是在欧洲、亚洲及美洲等温带地区,大洋洲也有发现。1907年日本人川井正方在我国湖北宜昌附近长江沿岸采得淡水水母标本,为日本学者丘浅次郞研究,当时误订为一新种Limnocodium kawaii,于1922年改为一变种L.

The freshwater medusae were rare organisms. They were called Tao-huayu(peach blossom fish) in ancient times of china. Three handred years ago, morphology and ecology of them were recorded in many ancient Chiense books(Zhang, S.R. l609; Chen, M. L. 1726; Wu , Y. C. 1826). In 1609 Taohua-yu was recorded in'The Record of Gui County(vol.1).' Several specimens were collected in the Yangtse River, Yichang in 1907 by Oka' A.and was identified to be a new varity Craspedacusta sowerbyi var. kawaii(Oka, 1907, 1922).Thirty years, later the freshwater medusa was discovered from a rapidly increasing number of localities, mainly in the Yangtse River valley and southeastern areas along the sea(He, Z.W. 1964, 1981)