Good eye! I don't even see that one in the photo but when sorting them I noticed it.Nice isopods!You got mostly Oniscus asellus and Philoscia muscorum, and I also see one Trachelipus rathkii.
After working with those species for a while, you begin to get really good at telling them apart, even from photos.Good eye! I don't even see that one in the photo but when sorting them I noticed it.