Poirieria

Lore & Background

The genus Poirieria was established by Jousseaume in 1880. It comprises large predatory sea snails that are marine gastropod molluscs. The genus is placed within the subfamily Pagodulinae of the family Muricidae. Species within Poirieria include both living and fossil forms. Among the extant species are Poirieria kopua, described by Dell in 1956, Poirieria syrinx, described by Marshall and Houart in 1995, and Poirieria zelandica, described by Quoy and Gaimard in 1833. Fossil species include Poirieria delli, Poirieria denticulifera, Poirieria parva, and Poirieria primigena, all described by various authors from New Zealand deposits. The genus has also been subject to taxonomic revision, with many former species now considered synonyms under other genera such as Actinotrophon, Pazinotus, Calotrophon, Leptotrophon, Paziella, and Bouchetia.

Reader's Guide

The genus Poirieria holds significance in the study of muricid gastropods, particularly in the context of New Zealand marine fauna. The revision by Marshall and Houart in 1995 clarified the boundaries of the genus and described a new species, Poirieria syrinx. The genus includes both living and fossil representatives, providing a temporal perspective on the evolution of predatory sea snails within the Pagodulinae subfamily. The extensive list of synonymized species indicates that many taxa once assigned to Poirieria have been reclassified into other genera, reflecting ongoing refinement of muricid taxonomy. The fossil species, such as Poirieria delli and Poirieria primigena, contribute to the understanding of Cenozoic molluscan diversity in New Zealand. The genus is referenced in works such as 'New Zealand Shells and Shellfish' and 'New Zealand Mollusca', underscoring its regional importance. Molecular phylogenetic studies have also included Poirieria in analyses of Haustrinae and Pagodulinae, further integrating it into broader evolutionary frameworks.

Did You Know?

• The genus includes both extant species and fossil species described from New Zealand.
• Many former Poirieria species have been reclassified into genera such as Actinotrophon, Pazinotus, and Paziella.
• A revision of the genus was published by Marshall and Houart in 1995.