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Euglandina rosea, the rosy wolfsnail or cannibal snail, is a species of medium-sized to large predatory air-breathing land snail, a carnivorous terrestrial pulmonate gastropod mollusk in the family Spiraxidae. [1] This species is a fast and voracious predator, hunting and eating other snails and slugs. [2]
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. [4] These snails are especially notable for being carnivorous and predatory. They are ...
2012 Holland B.S., T. Chock, A. Lee & S. Sugiura. Tracking behavior in the snail, Euglandina rosea: First evidence of preference for endemic versus biocontrol target pest species in Hawaii. American Malacological Bulletin 30(1):153–157. 2011 Sugiura, S., B.S Holland & R.H. Cowie. Predatory behaviour in juvenile Euglandina rosea.
Shell of Euglandina rosea (syntype at MNHN, Paris) Scientific classification; Domain: ... The Oleacinoidea are a superfamily of air-breathing land snails and slugs, ...
The body whorl is compressed at the periphery, as in Glandina parallela (synonym of Euglandina rosea (Férussac, 1821)) giving the body whorl a subcylindric aspect. The suture is appressed. The aperture is long, rather narrow, internally smooth, and with very little callus on the columella or body.
In addition, invasive species such as Norway rats, Jackson's chameleons, and the highly predatory snail Euglandina rosea have been involved in the extinctions and declines of the native tree snails. [5] [4] O'ahu tree snail shells collected ca. 1933 at an elevation of 1500 feet on Waialae Ridge in Waialae Country Club, Honolulu, Hawaii.
Shell: Snail shells are mainly composed of a mixture of proteins called conchin, and calcium carbonate. Conchin is the main component in the outer layer of the shell, known as the periostracum . The inner layers of the shell are composed of a network of calcium carbonate, conchin, and different mineral salts.
P. dentifera was last seen alive in 1972. Further surveys conducted in 1991 failed to record live individuals, but empty shells belonging to the species were found. Its extinction is attributed to the introduction of the rosy wolfsnail (Euglandina rosea), which was introduced to the island in the late 1980s.