Juga plicifera
Shells at the Naturalis Biodiversity Center
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Caenogastropoda
clade Sorbeoconcha
Superfamily:
Cerithioidea
Family:
Semisulcospiridae
Genus:
Juga
Species:
J. plicifera
Binomial name
Juga plicifera
(I. Lea, 1838)
Synonyms[1]

Goniobasis plicifera
Oxytrema silicula (Gould)

Juga plicifera, common name pleated juga,[2] and graceful keeled horn snail[3] is a species of small freshwater snail with an ovate and corneous operculum, ranging in size from 16mm to 35mm long.[3] The snail is dextrally coiled with about 15 whorls and 10 to 12 axial plicae on each whorl.[3] It is an aquatic gastropod mollusk in the family Semisulcospiridae.

Distribution

Juga plicifera is distributed throughout northwestern Oregon and Washington, USA, and is found in lakes, rivers, creeks, and tributaries.[4]

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.[3] 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).[5]

Ecology

Juga plicifera serves as an intermediate host for Nanophyetus salmincola.[1]

Conservation

Juga plicifera is assessed as a vulnerable species in Oregon by NatureServe. Population in Washington do not have an assessed conservation status.[2]

J. plicifera observed in a stream in the Willamette Valley of Oregon

References

  1. 1 2 Adams A. M. (2006). "Foodborne trematodes". In: Ortega I. R. (ed.) (2006). Foodborne parasites. ISBN 0-387-30068-6. page 178.
  2. 1 2 "Juga plicifera (I. Lea, 1838)". NatureServe Explorer, accessed 26 February 2013.
  3. 1 2 3 4 (2013). "Juga plicifera". In: Oregon Estuarine Invertebrates (ed. 2) (2013). Juga plicifera .
  4. ↑ Strong and Whelan (2019). "Assessing the diversity of western North American Juga (Semisulcospiridae, Gastropoda)". Molecular Phylogenetics and Evolution, 136. (2019): 87–103. [doi: 10.1016/j.ympev.2019.04.009].
  5. ↑ Foltz Jordan and Janicki (n.d.). "A freshwater snail". The Xerces Society.


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