Photo of Lampetra fluviatilis  
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Reference:

Pictures from the GICIM Database of the Muséum National d'Histoire Naturelle (modified): http://dsiphoto.mnhn.fr/gicim/sd00031/i2004-0836_p2.jpg

Remark:

Copyright by Muséum National d'Histoire Naturelle, Collection d'Ichtyologie.

Attribution:

 

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