About Ratnadvipia irradians (L.Pfeiffer, 1853)
Description: The shell of Ratnadvipia irradians is thin but solid, and its color ranges from bright golden brown to greenish yellow. The apex is obtuse. The large, lunate oval aperture is very large and highly oblique. The foot of the snail is pale. Ecology: This species is the most widespread among land snails endemic to Sri Lanka. It can be found in dry zone forests, intermediate zone forests, and home gardens.