Poirieria zelandica, common name the spiny murex, is a species of large predatory sea snail with an operculum.

[1] Shells of Poirieria zelandica can reach a size of 35–65 millimetres (1.4–2.6 in).

[2] These shells are roughly fusiforms, with long, straight spines.

[3] This species can be found in Tasmania and New Zealand.

[2][4] Media related to Poirieria zelandica at Wikimedia Commons