【和名：ホロミジンコ】

1.0～1.8mmで，ゼラチン質の外皮を持ち，大きなホロを広げたように見える．北方性種と考えられ，比較的深い湖沼に見られる．

1901Holopedium_gibberum_01_200x300n 1901Holopedium_gibberum_02_200x300n 1901Holopedium_gibberum_03_200x300n

1901Holopedium_gibberum_04_200x300n 1901holopedium_gibberum_05_200x430n