isthmuksella

Isthmusella is a genus of small to moderately sized air-breathing land snails, aquatic snails, or semi-slugs, terrestrial pulmonate gastropod mollusks in the family Hydrobiidae.

The genus Isthmusella is primarily found in the southwestern part of the Australian state of Western Australia, with several species known to inhabit the region. These snails are often small in size, typically ranging from 5-10 millimeters in diameter, and are characterized by their thin shells, which are usually translucent or pale in color.

Members of the genus Isthmusella are primarily found in freshwater and terrestrial environments, often inhabiting areas with shallow water or moist soil. Some species are capable of tolerating short periods of exposure to air, while others are semi-aquatic, moving between water and land as needed.

Isthmusella snails are typically found in areas with high humidity and moderate to low temperatures. They feed on algae, small plants, and other microscopic organisms, using their radula to scrape and eat their prey. In terms of their life cycle, Isthmusella snails are hermaphroditic, meaning they possess both male and female reproductive organs. However, they still need to mate with another individual to reproduce, as they are sequential hemaphrodites, only functioning as either male or female once during their breeding season.

Limited information is available on the conservation status of Isthmusella species. However, the impact of environmental changes, such as alterations in water levels and flow rates, is a concern for many hydrobiid snail species, including those found in the Isthmusella genus.