It was formerly listed as Threatened in 1993/1994[2] and Data Deficient since 1996 until it was changed to Critically Endangered and possibly extinct in 2012; this is because it is found only in Phantom Lake, Balmorhea Lake, has range of less than 100 km², and was last observed in 1993.

[1] A 1991 report by the United States Fish and Wildlife Service also listed it as Endangered[3] and they also later noted the unknown population.

[5] Its habitat was impounded in 1946 and still threatened by drought and longtime water abstraction since the 1970s.

However, as a helpful measure, a pump was installed to maintain water level but the effects for the snail are unknown.

[8] In 2014, research published in the Western North American Naturalist moved the snail to the genus Juturnia and noting it had been extinct since 1984 but the IUCN nor other organizations have changed their information.