I am in the process of photographing a local universities beetle collection for a pet-project of mine, and a friend popped round with some woodlouse specimens (collected during academic research) to add to the photographic database.
This one is a juvenile of an unidentified species, the image isn't too great as I am only an amateur at microphotogaphy/photomicroscopy (or however you want to call it!) and it was only about 3-4mm long:
It was mounted on a card on its side to hopefully aid with ID.
I can probably find out more information if required. It's a long shot but if anyone looks at the image and immediately knows what it is, or has any suggestions it'd be greatly appreciated!