Galba meridensis
Galba meridensis is a species of air-breathing freshwater snail, an aquatic pulmonate gastropod mollusc in the family Lymnaeidae, the pond snails. This species appears to be endemic to very high altitudes. This species belong to the Galba/Fossaria group, therefore this species should be named Galba meridensis. cf. Distribution 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). Description The shell is light brown, thin-walled, with a relatively short spire. The apex is obtuse. The shell has fine growth lines, and has only 3 whorls. The body whorl dominates the shell, is inflated and separated by a deep, well-marked suture. The aperture is large, oblique, oval and wide at the base. The shell tends to