Rissoa

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Rissoa
Rissoa janusi 001.jpg
Shell of Rissoa janusi
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Littorinimorpha
Family: Rissoidae
Genus: Rissoa
Freminville in Desmarest, 1814
Type species
Rissoa ventricosa
Desmarest, 1814
Species

See text

Synonyms [1]
  • ApiculariaMonterosato, 1884
  • ElatiellaNordsieck, 1972
  • GoniostomaVilla, 1841
  • GuerinianaNordsieck, 1972
  • LamarckiaLeach, 1852
  • LiavenustiaNordsieck, 1972
  • LilaciniaNordsieck, 1972
  • LoxostomaBivona-Bernardi, 1838
  • PersephonaLeach, 1852
  • RissoiaBronn, 1848
  • RissostomiaG.O. Sars, 1878
  • SabaneaMonterosato, 1884
  • SchwartziaBucquoy, Dautzenberg & Dollfus, 1884
  • SfaxiellaNordsieck, 1972
  • TurboellaLeach, 1847
  • ZipporaLeach, 1852

Rissoa is a genus of minute sea snails, marine gastropod mollusks or micromollusks in the family Rissoidae. [1]

Contents

The genus was first introduced by M. de Freminville for some small shells observed by M. Antoine Risso, a distinguished naturalist of Nice, France. They were described by M. Demarest in 1814 in the "New Bulletin of the Philomatic Society". [2]

Description

The soft body of the snail is elongated and spiral. The somewhat prolonged mouth has a proboscis. The tentacles are awl-shaped with the eyes on a small prominence near the base. The foot is oval or elliptical. The species is phytophagous.

The conical shell has an elongated spire with its apex nipple-shaped. The size of the shell varies between 1 mm and 8 mm. The whorls are generally convex-shaped with a distinct suture. The aperture is ovate, roundish or pear-shaped with its anterior end rounded, the posterior end acute and with the peristome complete. The thin and horny operculum is spirally marked and equally ovate, roundish or pear-shaped. [2]

Habitat

This species can be found on brown algae (genus Fucus ), in clefts of rocks, on stones, on mud or sand. Most will be found on sandy beaches along the line of the last tide. [2]

Species

Species within the genus Rissoa include:

Synonyms

Related Research Articles

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<span class="mw-page-title-main">Rissoidae</span> Family of gastropods

Rissoidae is a large family of very small and minute sea snails with an operculum, marine gastropod mollusks in the superfamily Rissooidea and the order Littorinimorpha.

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Onoba is a genus of minute sea snails, marine gastropod mollusks or micromollusks in the family Rissoidae.

<i>Pusillina</i> Genus of gastropods

Pusillina is a genus of minute sea snails, marine gastropod mollusks or micromollusks in the family Rissoidae.

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References

  1. 1 2 Rissoa Freminville in Desmarest, 1814 . Gofas, S. (2010). Rissoa Freminville in Desmarest, 1814. In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2010) World Marine Mollusca database. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=138456 on 16 June 2011 .
  2. 1 2 3 Macgillivray, William, History of the molluscous animals of Scotland, London, 1844
  3. ↑ Rissoa aartseni Verduin, 1985 . Retrieved through: World Register of Marine Species  on 9 August 2010.
  4. ↑ Rissoa albugo Watson, 1873 . Retrieved through: World Register of Marine Species  on 9 August 2010.
  5. ↑ Rissoa alleryi (Nordsieck, 1972) . Retrieved through: World Register of Marine Species  on 9 August 2010.
  6. ↑ Rissoa angustior (Monterosato, 1917) . Retrieved through: World Register of Marine Species  on 9 August 2010.
  7. ↑ Rissoa auriformis Pallary, 1904 . Retrieved through: World Register of Marine Species  on 9 August 2010.
  8. ↑ Rissoa auriscalpium (Linnaeus, 1758) . Retrieved through: World Register of Marine Species  on 9 August 2010.
  9. ↑ Rissoa decorata Philippi, 1846 . Retrieved through: World Register of Marine Species  on 9 August 2010.
  10. ↑ Rissoa euxinica Milaschevich, 1909 . Retrieved through: World Register of Marine Species  on 9 August 2010.
  11. ↑ Rissoa frauenfeldiana Brusina, 1868 . Retrieved through: World Register of Marine Species  on 9 August 2010.
  12. ↑ Rissoa gemmula Fischer P. in de Folin, 1869 . Retrieved through: World Register of Marine Species  on 9 August 2010.
  13. ↑ Rissoa gomerica (Nordsieck & Talavera, 1979) . Retrieved through: World Register of Marine Species  on 9 August 2010.
  14. ↑ Rissoa guerinii Récluz, 1843 . Retrieved through: World Register of Marine Species  on 9 August 2010.
  15. ↑ Rissoa guernei Dautzenberg, 1889 . Retrieved through: World Register of Marine Species  on 9 August 2010.
  16. ↑ Rissoa italiensis Verduin, 1985 . Retrieved through: World Register of Marine Species  on 9 August 2010.
  17. ↑ Rissoa janusi (Nordsieck, 1972) . Retrieved through: World Register of Marine Species  on 9 August 2010.
  18. ↑ Rissoa lia (Monterosato, 1884) . Retrieved through: World Register of Marine Species  on 9 August 2010.
  19. ↑ Rissoa lilacina Récluz, 1843 . Retrieved through: World Register of Marine Species  on 9 August 2010.
  20. ↑ Rissoa membranacea (Adams J., 1800) . Retrieved through: World Register of Marine Species  on 9 August 2010.
  21. ↑ Rissoa mirabilis Manzoni, 1868 . Retrieved through: World Register of Marine Species  on 9 August 2010.
  22. ↑ Rissoa monodonta Philippi, 1836 . Retrieved through: World Register of Marine Species  on 9 August 2010.
  23. ↑ Rissoa multicincta (Smriglio & Mariottini, 1995) . Retrieved through: World Register of Marine Species  on 9 August 2010.
  24. ↑ Rissoa multicostata (Nordsieck & Talavera, 1979) . Retrieved through: World Register of Marine Species  on 9 August 2010.
  25. ↑ Rissoa panhormensis Verduin, 1985 . Retrieved through: World Register of Marine Species  on 9 August 2010.
  26. ↑ Rissoa paradoxa (Monterosato, 1884) . Retrieved through: World Register of Marine Species  on 9 August 2010.
  27. ↑ Rissoa parva (da Costa, 1778) . Retrieved through: World Register of Marine Species  on 9 August 2010.
  28. ↑ Rissoa pseudoguerini (Nordsieck & Talavera, 1979) . Retrieved through: World Register of Marine Species  on 9 August 2010.
  29. ↑ Rissoa rodhensis Verduin, 1985 . Retrieved through: World Register of Marine Species  on 9 August 2010.
  30. ↑ Rissoa scurra (Monterosato, 1917) . Retrieved through: World Register of Marine Species  on 9 August 2010.
  31. ↑ Rissoa similis Scacchi, 1836 . Retrieved through: World Register of Marine Species  on 9 August 2010.
  32. ↑ Rissoa splendida Eichwald, 1830 . Retrieved through: World Register of Marine Species  on 9 August 2010.
  33. ↑ Rissoa torquilla Pallary, 1912 . Retrieved through: World Register of Marine Species  on 9 August 2010.
  34. ↑ Rissoa variabilis (Von Mühlfeldt, 1824) . Retrieved through: World Register of Marine Species  on 9 August 2010.
  35. ↑ Rissoa ventricosa Desmarest, 1814 . Retrieved through: World Register of Marine Species  on 9 August 2010.
  36. ↑ Rissoa verdensis Rolán & Oliveira, 2008 . Retrieved through: World Register of Marine Species  on 9 August 2010.
  37. ↑ Rissoa vicina Milaschevich, 1909 . Retrieved through: World Register of Marine Species  on 9 August 2010.
  38. ↑ Rissoa violacea Desmarest, 1814 . Retrieved through: World Register of Marine Species  on 9 August 2010.
  39. ↑ Rissoa interrupta (J. Adams, 1800) . Retrieved through: World Register of Marine Species  on 9 August 2010.
  40. ↑ Rissoa porifera (Lovén, 1843) . Retrieved through: World Register of Marine Species  on 9 August 2010.
  41. ↑ Rissoa rufilabrum Alder . Retrieved through: World Register of Marine Species  on 9 August 2010.
  42. ↑ Rissoa sarsii Lovén, 1846 . Retrieved through: World Register of Marine Species  on 9 August 2010.
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