Apparently the little black spheres in my soup (in the pic above) were snails. I went back today to investigate, and found this on the board above (I hadn’t spotted it earlier):
The snails in the soup don’t look anything like the picture and eating them by themselves, as I did this evening, they are not particularly snaily. They add a certain rubbery texture, but that’s it.
While on the subject, I found this interesting:
