Ferrissia neozelanica
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Heterobranchia
Superorder: Hygrophila
Family: Planorbidae
Genus: Ferrissia
Species:
F. neozelanica
Binomial name
Ferrissia neozelanica
(Suter, 1905)[2]
Synonyms
  • Ferrissia (Kincaidilla) neozelanica (Suter, 1905) · accepted, alternate representation
  • Gundlachia neozelanica Suter, 1905

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[3] and as Ferrissia neozelanicus - least concern.[1]

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.[4]

The shell length is up to 3 mm, the width up to 2 mm, and height up to 0.75 mm.[5]

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.[5]

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[4]

  1. 1 2 Collier K. (2013). "Ferrissia neozelanicus". The IUCN Red List of Threatened Species. IUCN. 2013: e.T198829A14188564. doi:10.2305/IUCN.UK.2013-2.RLTS.T198829A14188564.en. Retrieved 11 January 2018.
  2. ↑ Suter H. (1904). "The First-discovered New Zealand Gundlachia". Transactions and Proceedings of the New Zealand Institute 37: 258.
  3. ↑ Clark S. (2011). "Gundlachia neozelanica". The IUCN Red List of Threatened Species. IUCN. 2011: e.T188877A8656370. doi:10.2305/IUCN.UK.2011-2.RLTS.T188877A8656370.en. Retrieved 11 January 2018.
  4. 1 2 Suter H. (1913). Manual of the New Zealand Mollusca. Wellington.
  5. 1 2 Powell A. W. B. (1979). New Zealand Mollusca. William Collins Publishers Ltd, Auckland, New Zealand, ISBN 0-00-216906-1
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