Salve sono una studentessa, mi servirebbe un aiuto nell’identificazione di alcuni crostacei, vi ringrazio in anticipo e vi allego le foto. Immagine: 24,54 KB
The first one may be a juvenile of Derilambrus angulifrons. The last one is an amphipod Lysianassidae. It is difficult to determine these to species level but you can compare it to Ichnopus spinicornis. In the second one get a good image of the rostrum maybe it could be determined somehow.