Pickenia

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Pickenia
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Littorinimorpha
Family: Cingulopsidae
Genus: Pickenia
Species:
P. signyensis
Binomial name
Pickenia signyensis
(Ponder, 1983)

Pickenia is a monotypic genus of minute sea snails, a marine gastropod mollusk in the family Cingulopsidae. [1] The only known species is Pickenia signyensis, found on Signy Island in the South Orkney Islands.

Contents

Description

The maximum recorded shell length is 1.48 mm. [2] The shell is a pale orange-brown colour, with a yellow-brown aperture. The protoconch is usually dark purple-brown. [3]

The holotype is held by Amgueddfa Cymru – Museum Wales. [4]

Distribution

The species has only been found on Signy Island in the South Orkney Islands. The holotype was collected by G. Picken in 1977. [3]

Habitat

The species' holotypes and paratypes were collected from rocky bottom on algae off the coast of Signy Island. [3] The minimum recorded depth is 4 m. [2] Maximum recorded depth is 10 m. [2]

References

  1. ↑ Pickenia signyensis Ponder, 1983 . WoRMS (2009). Pickenia signyensis Ponder, 1983. Accessed through the World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=197370 on 5 June 2010 .
  2. 1 2 3 Welch J. J. (2010). "The "Island Rule" and Deep-Sea Gastropods: Re-Examining the Evidence". PLOS One 5(1): e8776. doi : 10.1371/journal.pone.0008776 .
  3. 1 2 3 Ponder, Winston F (1983). Rissoaform Gastropods from the Antarctic and Sub-Antarctic: The Eatoniellidae, Rissoidae, Barleeidae, Cingulopsidae, Orbitestellidae, and Rissoellidae (Mollusca, Gastropoda) of Signy Island, South Orkney Islands, with a Review of the Antarctic and Sub-Antarctic (excluding Southern South America and the New Zealand Sub-Antarctic Islands) Species. Vol. 108. British Antarctic Survey. ISBN   0-85665-100-1.
  4. ↑ Poppe, Guido T.; Poppe, Philippe. "Pickenia signyensis". Conchology, Inc. Retrieved 22 November 2022.
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