Basileostylus bollonsi

Basileostylus bollonsi , common name the New Zealand flax snail or pupuharakeke, is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Bothriembryontidae.^[2]

Basileostylus bollonsi
Conservation status
Vulnerable  (IUCN 2.3)[1]
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Order:	Stylommatophora
Family:	Bothriembryontidae
Subfamily:	Placostylinae
Genus:	Basileostylus
Species:	B. bollonsi
Binomial name
Basileostylus bollonsi (Suter, 1908)
Synonyms
Placostylus (Basileostylus) bollonsi Suter, 1908 Placostylus (Basileostylus) bollonsi arbutus Powell, 1948 Placostylus (Basileostylus) bollonsi caperatus Powell, 1948 Placostylus bollonsi Suter, 1908

Distribution

This species is endemic to the Three Kings Islands group off the northern tip of New Zealand's North Island.

Subspecies

A number of subspecies were recognised; Placostylus bollonsi arbutus and P. b. bollonsi are classified by the New Zealand Department of Conservation as being Nationally Endangered, while Placostylus bollonsi caperatus is classified as Nationally Critical.^[3]

Buckley et al. (2011)^[4] found based on molecular phylogeny research and shell morphology research, that there are no subspecies of Placostylus bollonsi.^[4]