Juga
| Juga | |
|---|---|
| Scientific classification | |
| Kingdom: | |
| Phylum: | |
| Class: | |
| (unranked): | |
| Superfamily: | |
| Family: | |
| Genus: | Juga |
Juga is a genus of freshwater snails with a gill and an operculum, aquatic gastropod mollusks in the family Semisulcospiridae.
These snails are native to the rivers of the northwestern United States and adjacent British Columbia. Several species are endemic to isolated large springs in the American Great Basin.[citation needed]
The most abundant and widespread species, Juga plicifera, attains a height of up to 35 mm. It is sculpted with fine spiral ridges and variably developed ribs that frequently disappear in parts of the shell made as the animal matures.[citation needed]
Species
The following species and subspecies are recognized:
Subgenus Juga s.s.
- Juga hemphilli (J. Henderson, 1935)[2]
- Juga plicifera (I. Lea, 1838)[2]
- Juga silicula (Gould, 1847)[2]
Subgenus Calibasis
- Juga acutifilosa (Stearns, 1890)[2]
- Juga occata (Hinds, 1844)[2]
Subgenus Oreobasis
- Juga bulbosa (Gould, 1847)[2]
- Juga interioris (Goodrich, 1944)[2]
- Juga laurae (Goodrich, 1944)[2]
- Juga nigrina (I. Lea, 1856)[2]
subgenus ?
- Juga chacei (Henderson, 1935)[3]
- Juga newberryi (I. Lea, 1860)[3]
- Juga orickensis (Henderson, 1935)[3]
Ecology
Parasite of Juga spp. include bacterium Neorickettsia risticii that causes Potomac horse fever and the associated trematode vector.[4]
References
- ^ Adams H. (1854). Gen. Rec. Moll. 1: 300.
- ^ a b c d e f g h i j k l Burch, J.B. (April 1982). Freshwater Snails (Mollusca: Gastropoda) of North America (PDF) (1 ed.). Cincinnati, Ohio, USA: Environmental Monitoring and Support Laboratory, Office of Research and Development, U.S. Environmental Protection Agency. p. 294.
- ^ a b c d NatureServe Explorer, accessed 19 November, 2015.
- ^ Reubel, G. H.; Barlough, J. E.; Madigan, J. E. (1998). "Production and characterization of Ehrlichia risticii, the agent of Potomac horse fever, from snails (Pleuroceridae: Juga spp.) in aquarium culture and genetic comparison to equine strains". Journal of clinical microbiology. 36 (6): 1501–1511. PMC 104868. PMID 9620368..
 | This article includes a list of general references, but it lacks sufficient corresponding inline citations. (June 2011) |
- Clarke, Arthur H. 1981. The freshwater mollusks of Canada. National Museums of Canada. 446 pp.
- List including species in Oregon: http://oregonstate.edu/ornhic/data/2004/inverts.html
External links
| Databases |  | |
|---|---|---|
| people | ||