In the last three days, I have found two snails infected by some species of Leucochloridium. I found them in my garden in the south-west of Sweden. Now I'm wondering if they are the same species or not.
One has broodsacs with green stripes and looks like a typical Leucochloridium paradoxum, and the other has brown stripes, which makes me think it's a Leucochloridium variae, but I've seen it mentioned that their appearance can vary.
Update: I have learned that there is only one (documented) species of Leucochloridium in Sweden, so maybe I should close this question, but I would still like to know if there is a way to tell the difference just by appearance.