Juga silicula explained

Juga silicula, common name glassy juga,^[1] is a small, freshwater snail found lotic water in Washington, Oregon, and northern California. It is dark reddish-brown in color with an ovate operculum and about 3.5 whorls.^[2]

Historically, J. silicula was abundant in its range.^[3] It is currently considered a species of concern in Washington due to limited range, habitat degradation and anthropogenic factors.^[4]

J. silicula acts as a first intermediate host for the trematode parasite Cephalouterina dicamptodoni.^[3]

Notes and References

1. Web site: Juga silicula, Glassy juga (Gould, 1847) . 2022-12-26. www.sealifebase.se.
2. Strong, E. E. (2005). A morphological reanalysis of Pleurocera acuta Rafinesque, 1831 and Elimia livescens (Menke, 1830)(Gastropoda: Cerithioidea: Pleuroceridae). Nautilus.
3. Poteet, M. F. (2006). Shifting roles of abiotic and biotic regulation of a multi-host parasite following disturbance. Disease Ecology. Oxford University Press, New York, 135-153.
4. Johannes, E. J. (2010). Freshwater mollusks found during a survey for Potamopyrgus antipodarum (New Zealand mudsnail) within a five-mile radius of Capitol Lake, Thurston County, Washington. The Dredgings, 50, 3-5.