Hey, Wes. All the families you list except the last two deal with fresh or saltwater shell fish. Solpugids are Scorpions and Palpigrads are very small spiders, (arachnids), with no eyes or respiratory system. I believe the Palpigrads live in saltwater. If a scorpion was unlucky enough to fall into a stream, then a trout would probably feed on it. these. Families of shell fish living in trout waters would certainly be in a trout's diet, if they are small enough for the trout to eat.

JIMMY  D.
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Wes Wada wrote:

Into another phase on the research I am doing, and wish to streamline things if at all possible. I am looking these up one at a time, but help would be appreciated.

The Question: Which of the following biological families would contain creatures eaten by trout?

Many thanks,
Wes Wada
Bend, Oregon





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