Gammarus???

Redtag has attached these 2 pictures to aid in identification. The message is below.

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Pentax optio W60
ISO 800
f 3.8
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Pentax optio W60
ISO 800
f 4.4
1/25

Redtag	August 24th, 2013, 3:20 pm
The Netherlands Posts: 4	Can some one telle me what king of gammarus this is? It's found in The Netherlands. Is it a gammarus pulex or a gammarus trigrinus? The size was about 2 cm when stretched. greetings and tight lines. René (redtag)

Crepuscular	August 26th, 2013, 12:30 pm
Boiling Springs, PA Posts: 923	Hello René, I'm no expert but I don't think i would be able to make a species determination from the photos you have provided. Some of the characters required to do so are not visible. But someone here may have more experience with European Gammarus species than I do (I have none). I've only dealt with Eastern North American species. And even that experience has been limited.

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