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Gomphonema sp. 60 x 18 μm Sanda Hyogo, 2001	Gomphonema sp.1 50 x 15 μm Japan, 1998	Gomphonema sp. 36 x 16 μm Kurihashi Saitama, 2001	Gomphonema sp. 47 x 12 μm Kinu river Takanezawa Tochigi, 2004
Gomphonema sp. 50 x 10 μm Lake Kizaki Omachi Nagano, 2005

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