Английская Википедия:Ferrissia neozelanica

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Ferrissia neozelanica, also known as Gundlachia neozelanica, is a species of minute freshwater limpet, an aquatic pulmonate gastropod mollusk, or micromollusk, in the family Planorbidae.

As of 2014, this species was listed in the IUCN Red list twice: as Gundlachia neozelanica - data deficient[1] and as Ferrissia neozelanicus - least concern.[2]

Shell description

Shell depressed conoidal, oval-oblong, the sides straightened, subparallel, thin, semitransparent, horn-colour, with a blackish-green coating. Apex a little inclined to the right, situated at the posterior sixth of the length, flatly convex anteriorly; concentric lines of growth at regular intervals. Interior light brown, shining. Aperture is elongated oval, slightly broadened anteriorly. Specimens have been found with the septum partly formed, but not adult.[3]

The shell length is up to 3 mm, the width up to 2 mm, and height up to 0.75 mm.[4]

Anatomy

These animals have a pallial lung, as do all pulmonate snails, but they also have a false gill or "pseudobranch". This serves as a gill as these limpets may sometimes not be able to reach the surface for air.

Distribution

This freshwater limpet is endemic to the South Island of New Zealand.[4]

Habitat

These tiny limpets are found attached to stems and undersides of leaves of aquatic plants in quiet waters.

References

This article incorporates public domain text from the reference[3] Шаблон:Reflist

External links

Шаблон:Taxonbar

  1. Шаблон:Cite journal
  2. Ошибка цитирования Неверный тег <ref>; для сносок IUCN 2013 не указан текст
  3. 3,0 3,1 Suter H. (1913). Manual of the New Zealand Mollusca. Wellington.
  4. 4,0 4,1 Powell A. W. B. (1979). New Zealand Mollusca. William Collins Publishers Ltd, Auckland, New Zealand, Шаблон:ISBN