line is often induced by the mating behaviour, when the snails mount each other and the borders of their shell clash. once the shell grows again, the damaged parts stay behind in growth and an irregular shell border arises. in many occasions, the snail manages to overcome this problem (figure ), but...
in the us) is pomacea paludosa (florida apple snail). below is a quick and dirty guide to identify them based on the shape of the shell. once more: ignore the colour of your snails when you try to determine the species by comparing them with pictures. many colour variations (shell and body) exist within...