Biology:Perrierina

From HandWiki

Perrierina is a genus of marine bivalve molluscs of the family Cyamiidae.[1] Members of the genus are found in the waters of New Zealand, Australia and Antarctica.

Description

Members of Perrierina have small, thin shells that are transversely-ovate and inequilateral (the anterior side being significantly shorter). The genus has a cap-shaped prodissoconch and shallow hinge plates, that have pairs of small cardinals in each valve.[2]

Taxonomy

The genus was first described in 1897 by Félix Bernard.[3] The genus was originally monotypic, only including P. taxodonta, until 1928 when P. ovata was described.[4]

Distribution

Perrierina is primarily found in the waters of New Zealand,[5][6] with additional species known to occur in south-eastern Australia and Antarctica.[7][8] The earliest currently known fossils of the genus, Perrierina sola, date to the Opoitian stage of the Pliocene in New Zealand (approximately 5.33 million years ago),[9] with similarly aged fossils found on King George Island of the South Shetland Islands.[8]

Species

Species within the genus Perrierina include:[1]

References

  1. 1.0 1.1 Perrierina F. Bernard, 1897. Retrieved through: World Register of Marine Species on 10 February 2026.
  2. Powell, A.W.B. (1979). New Zealand Mollusca: Marine, Land and Freshwater Shells. Auckland: Collins. p. 401. ISBN 0002169061. 
  3.  , Wikidata Q56010742
  4.  , Wikidata Q90812466
  5. "Perrierina". Manaaki Whenua. https://biotanz.landcareresearch.co.nz/scientific-names/4640b932-7d53-42b2-a988-418d7f6ea91e. 
  6. "Perrierina F.Bernard, 1897". Species. GBIF. http://www.gbif.org/species/2286356. 
  7. "Genus Perrierina Bernard, 1897". Australian Government. https://biodiversity.org.au/afd/taxa/Perrierina. 
  8. 8.0 8.1 Gaździcki, Andrzej; Pugaczewska, Halina (January 1984). "Biota of the "Pecten Conglomerate" (Polonez Cove Formation, Pliocene) of King George Island (South Shetland Islands, Antarctica)". Studia Geologica Polonica 79: 59-120. 
  9. Maxwell, P.A. (2009). "Cenozoic Mollusca". New Zealand Inventory of Biodiversity. Volume one. Kingdom Animalia: Radiata, Lophotrochozoa, Deuterostomia.. Christchurch: Canterbury University Press. p. 236. ISBN 978-1-877257-72-8. 

Wikidata ☰ Q3801880 entry