There are currently two known locations of the species, both in the
Taroom area. The first is located in three
boggomosses on Mt Rose Station (private property), with an estimated population >350, spread over an area of approximately 0.75 ha. Before the surrounding land was cleared for farming these three sites were probably part of the same population group. The second is located in the
riparian zone of the
Dawson River on a camping and water reserve at the Isla-Delusion crossing approximately halfway between the towns of
Taroom and
Theodore, with an estimated population of <500 spread over an area of approximately 44.5 ha. It is thought that the species was once more widespread but its range has been greatly reduced by destruction of its preferred habitat. With the revival of the proposal to build the
Nathan Dam, one of the environmental concerns was the snails on the Mt Rose Station would be inundated by the dam impoundment. In 2009, a trial project was established to see if these populations could be successfully relocated to other suitable habitats. However,
SunWater claimed that further studies revealed populations of 18,000 snails at other unidentified locations outside the inundation area, reducing the concern about the risk of the dam to the snails as a species, allowing the planning of the dam to resume. However, as at August 2015, the
Queensland Government still lists the snail as "endangered in Queensland" with only two population groups. == Description ==