According to the 2011 knowledge of the distribution of this species, and in contrast to the widespread species Galba cousini, Lymnaea meridensis appears to be a geographically restricted species.
This seems to suggest that Lymnaea meridensis evolved in a somewhat isolated fashion, in permanent ponds and small ditches in more northern, very high altitude areas (3,550-4,040 m) of the Andean mountains, like those in Merida State, Venezuela.

The type locality of Lymnaea meridensis is a permanent pond in Mucubaji (Kettle Mucubají), Merida State, Venezuela, located at an altitude of 3,550 m (8°47'51.8" N, 70°49'32.4" W).
According to the 2011 knowledge of the distribution of this species, and in contrast to the widespread species Galba cousini, Lymnaea meridensis appears to be a geographically restricted species. This seems to suggest that Lymnaea meridensis evolved in a somewhat isolated fashion, in permanent ponds and small ditches in more northern, very high altitude areas (3,550-4,040 m) of the Andean mountains, like those in Merida State, Venezuela.
The type locality of Lymnaea meridensis is a permanent pond in Mucubaji (Kettle Mucubají), Merida State, Venezuela, located at an altitude of 3,550 m (8°47'51.8" N, 70°49'32.4" W).
Lymnaea meridensis