''Aaadonta constricta'' is a species of
land snail
A land snail is any of the numerous species of snail that live on land, as opposed to the sea snails and freshwater snails. ''Land snail'' is the common name for terrestrial gastropod mollusks that have shells (those without shells are known as ...
, a
terrestrial pulmonate
Pulmonata or pulmonates, is an informal group (previously an order, and before that a subclass) of snails and slugs characterized by the ability to breathe air, by virtue of having a pallial lung instead of a gill, or gills. The group includ ...
gastropod
The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda ().
This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...
mollusk
Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is e ...
in the family
Endodontidae. It is
endemic
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...
to
Palau
Palau,, officially the Republic of Palau and historically ''Belau'', ''Palaos'' or ''Pelew'', is an island country and microstate in the western Pacific. The nation has approximately 340 islands and connects the western chain of the Caro ...
, where it is known from the islands of
Babeldaob,
Ngemelis,
Peleliu and
Koror
Koror is the state comprising the main commercial centre of the Republic of Palau. It consists of several islands, the most prominent being Koror Island (also ''Oreor Island''). It is Palau’s most populous state.
History
In the oral tradition ...
. It may be
extirpated from Koror. It is threatened by
habitat destruction
Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby ...
and modification.
In 1976, Solem described two subspecies of ''Aaadonta constricta'':
*''
A. c. babelthuapi''
*''
A. c. constricta''
*''
A. c. komakanensis''
[Endodontoid land snails from Pacific islands (Mollusca: Pulmonata: Sigmurethra) Part 1. Family Endodontidae. Field Museum of Natural History, Chicago, 1976: i-xii, 1-508. oological Record Volume 115/ref>
]
References
*Endodontoid land snails from Pacific Islands (Mollusca : Pulmonata : Sigmurethra). Alan Solem ... ; ollab.Barbara K. Solem. Chicago, Ill. :Field Museum of Natural History,1976.
*Endodontoid land snails from Pacific Islands (Mollusca : Pulmonata : Sigmurethra). Alan Solem. Chicago :Field museum of Natural History,1982.
Endodontidae
Endemic fauna of Palau
Gastropods described in 1874
{{Endodontidae-stub