Euglandina is the type genus of the subfamily Euglandininae. The pulmonate genus Euglandina is often referred to as Glandina in older literature, and the most widely known species, Euglandina rosea, may commonly be found under the synonym Glandina truncata.
These snails are especially notable for being carnivorous and predatory. They are sometimes called "wolf snails" for that reason.
The natural range of Euglandina encompasses much of the tropical and subtropicalWestern Hemisphere, including the SE United States to Texas, Mexico, and various locations in Central and South America. The species Euglandina rosea has been intentionally introduced into many other warm areas — from Hawaii to New Guinea, Bermuda, Sri Lanka, Mauritius, and numerous other locations — in a vain attempt to control accidentally introduced species of snails, usually the giant African Achatina fulica.
Those species of Euglandina that are non-indigenous to the USA have not yet become established in the USA, but they are considered to represent a potentially serious threat as a pest, an invasive species which could negatively affect agriculture, natural ecosystems, human health or commerce. Therefore it has been suggested that these species be given top national quarantine significance in the USA.
The various species of Euglandina are similar in numerous ways. The shells are simple, oval in outline (sometimes broadly so) but occasionally more-or-less straight-sided, The lip of the aperture is also simple, without any thickening. These shells may be brown, orange, or pink in color, or some intermediate shade. Shell sculpture when present usually consists of striae that mark progressive growth increments. All species are carnivores, and probably have essentially the same hunting and feeding strategies, and reproductive techniques.
Members of this genus can be found in many micro-habitats. Species of Euglandia can be found in semi-tropical moist jungle, and in near-desert. Their only requirements seem to be a relatively warm climate, and the presence of a sufficient supply of food organisms.
^Cowie R. H., Dillon R. T., Robinson D. G. & Smith J. W. (2009). "Alien non-marine snails and slugs of priority quarantine importance in the United States: A preliminary risk assessment". American Malacological Bulletin 27: 113-132. PDF.
^Binney W. G. (1878). "The Terrestrial Air-Breathing Mollusks of the United States and Adjacent Territories of North America". Vol. 5 (plates). Bull. Mus. Comparative Zool., Harvard. Plate 59.