Placostylus cuniculinsulae   (Cox)

Rabbit Island Flax Snail
(Placostylus cuniculinsulae)

syn. Bulimus bivaricosus var. cuniculinsulae (Cox), Bulimus cuniculinsulae (Cox), Placostylus bivaricosus var. cuniculinsulae (Cox), Placostylus bivaricosus cuniculinsulae (Cox)


Australia: Blackburn Island / Lord Howe Islands

local name: -

size: ca. 4,2 cm (shell)

extinction date: (?)

Blackburn Island (also named as Rabbit Island) is a tiny islet within the lagoon of Lord Howe Island.

The Flax Snails of this island were described as a distinct species in the year 1872. But they are sometimes regarded as a subspecies of the Lord Howe Flax Snail (Placostylus bivaricosus cuniculinsulae).

The Flax Snails of Blackburn Island died out already in the 19th century. After the islet's vegetation was destroyed by feral animals, the snails and their eggs were eaten by introduced rats (Rattus rattus).


Rabbit Island Flax Snail (Placostylus cuniculinsulae)

Depiction from 'James C. Cox: Descriptions of new Land-Shells from Australia and the South-Sea Islands. Proceedings of the Zoological Society of London 1872, 18-20'