1st one is aWormslug (may be Boettgerilla sp.); 2nd and 4th are perhaps caddisfly larvae (or any lepidopteran larvae); 3rd one looks like an aquatic isopod (pillbugs), hard to guess the taxon though.

Hope it helps

Regards,

Dr.Abhishek Mukherjee

Thank you very much, Abhishek.

1. Slug

2. Lepidoperan larvae

3. Isopoda

4. Mosquitoes larvae

Respected Masouleh, thank you. Regards.

I will share a document soon

First : Great Grey Slug

Second : Lepidoptera larvae

Third : Isopoda

Fourth : Larvae ., It's really hard to guess

Thank you, Mr. Dutta.

The specimens of the second and fourth photos belong to the same genus of trichoptera, the isopod in the third photo is a terrestrial isopod.

Picture 2 is most probably a Rhyacophila (Insecta, Trichoptera) of the Prosrhyacophila type.

Agree with Jean Paul, 2nd and 4th photos are Rhyacophila spp. (lato sensu), Trichoptera larvae.

Thank you, Jean-Paul!