About Mariaella dussumieri L.Pfeiffer, 1855
Mariaella dussumieri L.Pfeiffer, 1855 has an internal shell that is generally thin, slightly convex, ovate, and white. The apex of the shell forms a small point on the right side, near the posterior end, and the shell is not involute. This species lives in India, and is endemic to the Western Ghats. Within the Western Ghats, it occurs as far north as the Kadur district of Mysore, and may range as far north as Mahableshwar. It is also found in the hill-tracts of Ceylon. Its type locality is Mahé, India, a small town located between Calicut and Cannanore on the Malabar coast. This species has not yet become established in the USA. However, it is considered a potentially serious threat as a pest and invasive species that could negatively impact agriculture, natural ecosystems, human health, or commerce. For this reason, it has been suggested that the species be given top national quarantine significance in the USA.
