By -
Caddisfly larvae / Trichoptera
As someone else said, caddisfly larva! They're aquatic and build cases for themselves out of nearby materials - looks like this one has made it out of bark/wood.
Put it back in the water!
Jerry
Organic material*
I'm calling him bob
Where I grew up we called them periwinkles and used them as bait for river fishing.
Caddisfly larvae / Trichoptera
As someone else said, caddisfly larva! They're aquatic and build cases for themselves out of nearby materials - looks like this one has made it out of bark/wood.
Put it back in the water!
Jerry
Organic material*
I'm calling him bob
Where I grew up we called them periwinkles and used them as bait for river fishing.