Porcellanopagurus edwardsi

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Porcellanopagurus edwardsi
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Crustacea
Class: Malacostraca
Order: Decapoda
Family: Paguridae
Genus: Porcellanopagurus
Species: P. edwardsi
Binomial name
Porcellanopagurus edwardsi
Filhol, 1885

Porcellanopagurus edwardsi is a species of hermit crab that lives in the waters around New Zealand and its subantarctic islands.

Distribution[edit]

Porcellanopagurus edwardsi is found around the Auckland Islands, Campbell Islands, Snares Islands, Stewart Island and along the coast of New Zealand's South Island. The closely related species P. filholi has a more northerly distribution, overlapping with that of P. edwardsi only in the region of the Banks Peninsula.[1]

Taxonomy[edit]

Porcellanopagurus edwardsi was described by Henri Filhol in 1885 as the only species in a new genus Porcellanopagurus; 12 further species have since been described.[2]

Description[edit]

Unlike most hermit crabs, Porcellanopagurus edwardsi is almost symmetrical, but its abdomen is bent back over the carapace, so that the pleopods are dorsally situated. The abdomen is "grossly distorted",[3] and is usually covered by the shell of a bivalve or limpet, in contrast to the gastropod shell used by most hermit crabs.[1] The cephalothorax is flattened and extends outwards in a number of lobes, the largest of which is the rostrum at the front of the animal.[4]

Further reading[edit]

References[edit]

  1. ^ a b M. de Saint Laurent & P. A. McLaughlin (2000). "Superfamily Paguroidea, Family Paguridae". In Jacques Forest. The Marine fauna of New Zealand: Paguridea (Decapoda: Anomura) exclusive of the Lithodidae. NIWA Biodiversity Memoir. 114. National Institute of Water and Atmospheric Research. pp. 104–209. ISBN 978-0-478-08489-4.  pp. 110–114: P. edwardsi; pp. 114–117: P. filholi.
  2. ^ Patsy McLaughlin (2010). P. McLaughlin, ed. "Porcellanopagurus Filhol, 1985". World Paguroidea database. World Register of Marine Species. Retrieved October 25, 2011. 
  3. ^ P. E. Roberts (1972). "Larvae of Porcellanopagurus edwardsi Filhol, 1885 (Crustacea: Decapoda: Paguridae) from Perseverance Harbour, Campbell Island". Journal of the Royal Society of New Zealand. 2 (3): 383–391. 
  4. ^ Patsy A. McLaughlin & Rafael Lemaitre (1997). "Carcinization in the anomura – fact or fiction? I. Evidence from adult morphology". Contributions to Zoology. 67 (2): 79–123.  PDF