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淡水水母之桃花水母 PowerPoint PPT Presentation


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淡水水母之桃花水母. 著作者:. 盖 强 03221012 李学函 03221022 林智敏 03221023 田清清 03221030 武 林 03221036 杨博文 03221038. 前言. 腔肠动物 (Coelenterata) 约有 10000 种,绝大多数生活在海洋里 淡水生活的种类只有淡水水螅、淡水棒螅和淡水水母,其种类总数不超过 50 种 全世界 1200 余种水母,只有 26 种生活在淡水中. 摘要. 桃花水母经历世代交替,有水螅体和水母体。 水母体仅有硬币大小,成伞状。 幼体为浮浪幼虫。.

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淡水水母之桃花水母

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03221012

03221022 03221023

03221030

03221036 03221038


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(Coelenterata)10000

50

120026


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1880(LankesterER)(SowerbyW)CraspedacustasowerbyiLankester1880()

(Cnidaria)(Hydrozoa)(L imnomedusae) (Olindiidae)(Craspedacusta)


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(poppy)(medusa)

()

()1mm,10mm25mm


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()


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4()


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3750500

() ,


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()()


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20~25835


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1

2

3


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(Limnocnida)

L.tanganyicae(Guntherl893)

L.indica(Annadale l912)


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(Craspedacusta)

(l880),

(l922)


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(1939)

(1939)

(1980)

(1980)

(1984)


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(1985)

(1995)

(2000)

(2001)

(1907)


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