 Permission was granted in April 2006 for this translocation plan.This was condemned by Forest and Bird, by the Save Happy Valley Coalition and by the Green Party, in part because of significant doubts as to whether the translocation would succeed, and the lack of guarantee that this measure would protect the species from extinction.The numbers of this "Powelliphanta" species are estimated to be fewer than 500, and their existing habitat covers 3 to 4 ha.