''Juga plicifera'', common name pleated juga,"''Juga plicifera'' (I. Lea, 1838)".

NatureServe NatureServe, Inc. is a non-profit organization based in Arlington County, Virginia, United States, US, that provides proprietary wildlife conservation-related data, tools, and services to private and government clients, partner organizations, and ...

Explorer, accessed 26 February 2013. and graceful keeled horn snail(2013). "''Juga plicifera''". In: ''Oregon Estuarine Invertebrates'' (ed. 2) (2013). ''Juga plicifera'

is a

species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...

of small

freshwater snail Freshwater snails are gastropod mollusks that live in fresh water. There are many different families. They are found throughout the world in various habitats, ranging from ephemeral pools to the largest lakes, and from small seeps and springs t ...

with an ovate and corneous operculum, ranging in size from 16mm to 35mm long. The snail is dextrally coiled with about 15 whorls and 10 to 12 axial plicae on each whorl. It is an aquatic

gastropod Gastropods (), commonly known as slugs and snails, belong to a large Taxonomy (biology), taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, freshwater, and fro ...

mollusk Mollusca is a phylum of protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000 extant species of molluscs are recognized, making it the second-largest animal phylum after Arthropoda. The ...

in the family

Semisulcospiridae Semisulcospiridae, common name semisulcospirids, is a family of freshwater snails, aquatic gilled gastropod mollusks with an operculum, in the superfamily Cerithioidea.MolluscaBase eds. (2021). MolluscaBase. Semisulcospiridae J. P. E. Morrison, ...

Distribution

''Juga plicifera'' is distributed throughout northwestern

Oregon Oregon ( , ) is a U.S. state, state in the Pacific Northwest region of the United States. It is a part of the Western U.S., with the Columbia River delineating much of Oregon's northern boundary with Washington (state), Washington, while t ...

and

Washington Washington most commonly refers to: * George Washington (1732–1799), the first president of the United States * Washington (state), a state in the Pacific Northwest of the United States * Washington, D.C., the capital of the United States ** A ...

, USA, and is found in lakes, rivers, creeks, and tributaries.Strong and Whelan (2019). "Assessing the diversity of western North American Juga (Semisulcospiridae, Gastropoda)". ''Molecular Phylogenetics and Evolution'', 136. (2019): 87–103. oi: 10.1016/j.ympev.2019.04.009

Habitat

''Juga plicifera'' can be found clinging to rocks or substrate in slow flowing streams, as well as in the muddy-sand bottoms of small and medium lakes with a preference for shaded sites. It has been shown to like cool, clear water, though it has been noted to have a greater tolerance to siltation and slack water than some other members of the Juga genus ('' Juga newberryi'').Foltz Jordan and Janicki (n.d.)
"A freshwater snail"
The Xerces Society.

Ecology

''Juga plicifera'' serves as an intermediate host for ''

Nanophyetus salmincola ''Nanophyetus salmincola'' is a food-borne intestinal trematode parasite prevalent on the Pacific Northwest coast. The species may be the most common trematode endemic to the United States. The life cycle of the ''N. salmincola'' requires thr ...

''.

Conservation

''Juga plicifera'' is assessed as a vulnerable species in Oregon by

. Population in Washington do not have an assessed conservation status. Juga plicifera WIKI

References

Semisulcospiridae {{Semisulcospiridae-stub