Taxonomy
- Kingdom: Animalia
- Phylum: Mollusca
- Class: Gastropoda
- Superfamily: Truncatelloidea
- Family: Tateidae (formerly placed within Hydrobiidae)
- Genus: Beddomeia
- Species: Beddomeia fultoni
The species was formally described by Winston Ponder and G.A. Clark in 1990.
Description
Beddomeia fultoni is a minute freshwater snail possessing a thin, turreted shell typically measuring less than 5 mm in height. Like other members of the genus, it has an operculum—a calcareous or horny plate that closes the aperture when the animal retracts.
Distribution and Habitat
- Endemic to Tasmania, Australia.
- Known from a limited number of freshwater streams in the north‑western region of the island.
- Inhabits clean, well‑oxygenated, flowing water, often attaching to submerged rocks, leaf litter, or aquatic vegetation.
Ecology
- Grazes on biofilm, algae, and detritus on submerged substrates.
- Reproduction is ovoviviparous, with females giving birth to fully formed juveniles after internal development (a common trait in Tateidae).
Conservation Status
The conservation status of Beddomeia fultoni has been assessed by the IUCN Red List. It is listed as Vulnerable due to its restricted range, small area of occupancy, and threats from habitat degradation (e.g., water pollution, sedimentation, and alteration of stream flow). Conservation measures focus on protecting water quality and preserving the integrity of its limited stream habitats.
Threats
- Land‑use change affecting riparian zones.
- Water extraction and damming that alter flow regimes.
- Introduction of invasive species that may compete for resources or alter habitat conditions.
Research and Monitoring
- Ongoing surveys by Tasmanian conservation agencies monitor population trends.
- Studies on the genus Beddomeia have highlighted the need for detailed habitat assessments to inform management plans.
References
- Ponder, W.F., & Clark, G.A. (1990). Taxonomic revision of the freshwater gastropod genus Beddomeia (Mollusca: Prosobranchia: Hydrobiidae). Journal of the Royal Society of Tasmania, 124(1), 1‑70.
- IUCN Red List of Threatened Species. Beddomeia fultoni. Accessed 2026.
Note: Information presented reflects the current scientific consensus up to 2026 and relies on peer‑reviewed taxonomic literature and the IUCN Red List.
