云南淡水水母一新种(淡水水母目:笠水母科、桃花水母属)

A NEW SPECIES OF FRESHWATER MEDUSA FROM YUNNAN (LIMNOEDUSAE: OLINDIADAE)

本文描记采于云南省路南县黑龙潭水库的桃花水母属一新种一云南桃花水母，新种主辐触手显著长于其他触手，缘膜窄，平衡囊呈“S”形管状，刺丝囊集成丛，呈不连续的环状或螺旋状，生殖腺大，三角袋状，黑色，可明显与所有已发现的种相区别。

This paper reports a new species of the genus Craspedacusta collocted from Lunun county,yunnan province China.Type specimens are deposited in the Department of Biology, Kunming Junior Normal College and the Resevior of Heilongtan Lunan,Yunnan.Craspedacusta yunnanensis, Li et Wang, sp. nov (figs 1-3)Umbrella bell-shaped, 8-15mm in diameter,Velum very narrw, about1/8 of the diameter of umbrella. Stomach square the manubrium a tetragonal prism,with four large lips. extending beyond the umrella margin. Four gonads large. three-cornered, pocket-shaped,black in color when living, Marginal tentacles varying from 294-432 in number and arrranged regularly in four orders of 4, 28, 32 amd 230-368respectively. Statocyst tubular, 102-144 in number. Nematocyst warts are irregular,each containing 3-17The new species is distinguished from Craspedacusta sinensis and C. sichuanensis by its 1 order of tentacles larger than the another,and nematocyst warts on the tentacles arranged in aring-shaped or annulo-spiral,from C. iseanum by statocyststubular, and nematocysts collectedinto cluster,and from C. ziguiemnsis by nematocyst warts irregularly and arranged in a ring-shaped or annulo-spiral. ect (table 1-2)