Westraltrachia recta

Westraltrachia recta is a land snail in the family Camaenidae, characterised by a small, elongated shell typical of this genus, which distinguishes it from the more globular forms found in related camaenid groups. Like other terrestrial gastropods in this family, it plays a role in leaf litter decomposition and nutrient cycling, feeding on decaying plant matter, fungi, and microbial films, while itself serving as prey for invertebrate and small vertebrate predators. As a land snail, it relies on humid microhabitats and periods of moisture to remain active, retreating into shelter during dry conditions.

The species is endemic to Australia, where it occupies restricted terrestrial habitat, likely associated with rock outcrops, leaf litter, and vegetation cover that provide the humidity and shelter land snails of this genus require. No population trend has been established, and current numbers are not documented.

Westraltrachia recta is classified as Vulnerable, reflecting pressure from multiple ongoing threats. Residential and commercial development and agricultural expansion are reducing and fragmenting suitable habitat. Invasive non-native species pose risks through predation, competition, or habitat alteration.

Fire and altered fire regimes, including changes in fire suppression practices, threaten the leaf litter and vegetation structures the species depends upon, while drought conditions reduce the moisture availability essential to its survival and activity.

Specific conservation measures targeting this species are not well documented, though it likely benefits indirectly from broader habitat protection and land management efforts in its Australian range. Given the combination of habitat loss, climatic pressures, and invasive species, and the absence of confirmed population trend data, its long-term outlook remains uncertain without more targeted monitoring and habitat safeguards.

This terrestrial snail inhabits native vegetation communities in southwestern Western Australia, particularly areas with suitable leaf litter and soil conditions that provide moisture and shelter. It occurs in woodland and shrubland environments where native plant communities create the microhabitat conditions necessary for its survival.