Shell length is usually 4-5 mm.
There were 3 of these snails dormant on the outside of my garage door this afternoon. I call them Cochlicopa lubrica, a widespread species that is also present in Europe and elsewhere. I often come across them around my house. The last time I mentioned them on this blog was in this post.
It is now 9 o'clock at night. I just stepped outside and checked on the snails. They were still dormant. It is warm but dry. Perhaps the rain predicted for tomorrow will revitalize them.