Ovachlamys fulgens

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Ovachlamys fulgens
Ovachlamys fulgens 3.jpg
A live individual of Ovachlamys fulgens, notice the caudal horn on the tail end of the foot
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Heterobranchia
Order: Stylommatophora
Family: Helicarionidae
Genus: Ovachlamys
Species:
O. fulgens
Binomial name
Ovachlamys fulgens
(Gude, 1900) [1]
Synonyms

Macrochlamys fulgens Gude, 1900

Ovachlamys fulgens is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Helicarionidae.

Contents

Ovachlamys fulgens was originally discovered and described as Macrochlamys fulgens by the British malacologist Gerard Pierre Laurent Kalshoven Gude in 1900. [1]

Distribution

The type locality for this species is Ryukyu Islands (Loo-Choo Islands). [1] The type specimens are stored in the Florida Museum of Natural History. [2]

The snail is thought to be originally from the Ryukyu Islands. [3]

Ovachlamys fulgens has spread to various countries, most probably accidentally introduced with the orchid trade. [4] Non-indigenous distribution of Ovachlamys fulgens include:

Americas:

Pacific:

Several Southeast Asian countries:

This species is already established in the US, and is considered to represent a potentially serious threat as a pest, an invasive species which could negatively affect agriculture, natural ecosystems, human health or commerce. Therefore, it has been suggested that this species be given top national quarantine significance in the USA. [7]

Description

The drawings in the type description were created by the illustrator John Nugent Fitch and show apical, apertural and umbilical views of the shell of Ovachlamys fulgens. Ovachlamys fulgens shell.png
The drawings in the type description were created by the illustrator John Nugent Fitch and show apical, apertural and umbilical views of the shell of Ovachlamys fulgens.

The shell of this species is perforate, trochoid, thin, shining, pellucid and dark corneous, [1] with a depressed spire. [1] The apex is obtuse. [1] Sutures are linear and margined. [1] The shell has four whorls, that are increasing rather suddenly. [1] The last whorl is convex and a little inflated and it is twice as wide as the penultimate whorl. [1] Whorls are finely striated, decussated by microscopic spiral lines. [1] The last whorl is not descending and it is slightly excavated in the umbilical region. [1]

The aperture is slightly oblique and lunate. [1] The peristome is thin, straight, and acute. [1] The margins of the aperture are distant and sub-parallel, and the columellar margin is a little reflected and nearly covering the very narrow umbilical perforation. [1]

The width of the shell is 6–7 mm [1] and the height of the shell is 4,5 mm. [1]

These snails are sometimes called "jumping snails" because the tail is modified with a caudal horn and the posterior part of the foot acts as a catapult to push off from contiguous substrates, allowing the snail to suddenly move several inches. [3]

Apical view of a preserved specimen of Ovachlamys fulgens. The scale bar is in mm Ovachlamys fulgens.png
Apical view of a preserved specimen of Ovachlamys fulgens. The scale bar is in mm
Umbilical view of a preserved specimen of Ovachlamys fulgens. The scale bar is in mm. Ovachlamys fulgens 2.png
Umbilical view of a preserved specimen of Ovachlamys fulgens. The scale bar is in mm.

Ecology

The habitats of Ovachlamys fulgens include pastures and crop fields with moisture and with deep leaf litter cover. [2] For example, habitats with Yucca guatemalensis provide good conditions for this species. [2] The snails are mostly found in soil litter and on plants up to 8 feet in height in areas of secondary growth and tree plantations. [3] The ideal collection time is after rainfall. [3]

This species is considered an important orchid pest. [3] It is phytophagous [4] and is reported to attack a wide variety of horticultural plants, but the snails are mostly found among soil litter and become dormant during dry periods. [3] It has been found on avocado, mango, Heliconia and Dracaena . [3] Leaves of the avocado can be also used to raise juveniles in lab settings. [8]

Little scientific data has been gathered on the biology of this species. [3]

Individuals of Ovachlamys fulgens can lay eggs at the age of 42 days and are considered mature when their shell width reaches 5.12 mm. [8] There is no need for the snails to mate in order to lay eggs and for successful reproduction. [8] Eggs are laid in clutches of three in soil or leaf litter where they absorb more water from the environment. [8]

The lifespan of Ovachlamys fulgens is 9 months in lab settings. [8]

Parasites

Parasites of Ovachlamys fulgens include Angiostrongylus cantonensis . [6]

Related Research Articles

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References

This article incorporates public domain text from the reference [1] and a public domain work of the United States Government from references. [3] [4]

  1. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 PD-icon.svg Gude G. K. (1900). "Further notes on helicoid land shells from Japan, the Loo-Choo, and Bonin Islands, with descriptions of seven new species". Proceedings of the Malacological Society of London4: 70-80. page 75. Table VIII, figure 24-26.
  2. 1 2 3 4 (in Spanish) Barrientos Z. (24 September 1999). "Ovachlamys fulgens (Gude, 1900)" Archived 19 July 2011 at the Wayback Machine . Instituto Nacional de Biodiversidad (INBio), accessed 27 August 2010.
  3. 1 2 3 4 5 6 7 8 9 10 11 12 PD-icon.svg Stange L. A. (created September 2004, updated March 2006). "Snails and Slugs of Regulatory Significance to Florida" Archived 2 December 2010 at the Wayback Machine . Division of Plant Industry, Florida Department of Agriculture and Consumer Services. accessed 27 August 2010.
  4. 1 2 3 4 5 6 7 8 9 10 11 12 PD-icon.svg Robinson D. G. (16 June 2003). "Invasive Mollusk Survey of Miami-Dade and Broward Counties, Florida June 2003". Division of Plant Industry, Florida Department of Agriculture and Consumer Services. PDF [ permanent dead link ].
  5. ↑ Robinson, D.G. & J. Slapcinsky. 2005. Recent introductions of alien land snails into North America. American Malacological Bulletin20:89-93.
  6. 1 2 Teixeira, Larissa; Cunha, Carlo Magenta; Bornschein, Marcos R. (27 October 2017). "First record of the Japanese land snail Ovachlamys fulgens (Gude, 1900) (Gastropoda, Helicarionidae) in Brazil". Check List. 13 (5): 703–706. doi: 10.15560/13.5.703 . ISSN   1809-127X.
  7. ↑ Cowie R. H., Dillon R. T., Robinson D. G. & Smith J. W. (2009). "Alien non-marine snails and slugs of priority quarantine importance in the United States: A preliminary risk assessment". American Malacological Bulletin27: 113-132. PDF Archived 16 June 2016 at the Wayback Machine .
  8. 1 2 3 4 5 Barrientos Z. (1998). "Life history of the terrestrial snail Ovachlamys fulgens (Stylommatophora: Helicarionidae) under laboratory conditions". Revista de Biología Tropical 46(2): 369-384. PDF Archived 2 December 2017 at the Wayback Machine . HTM in the Google chache.

Further reading

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