Zachrysia provisoria

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Zachrysia provisoria
Cubanbrownsnail 02.jpg
Zachrysia provisoria in Indian Rocks Beach, Florida
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Stylommatophora
Family: Zachrysiidae
Genus: Zachrysia
Species:
Z. provisoria
Binomial name
Zachrysia provisoria
(Pfeiffer, 1858)

Zachrysia provisoria, the Cuban brown snail, is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Zachrysiidae. [1]

Contents

This species is already established in the USA 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. [2]

Description

The shell is medium-sized (25–30 mm width), globose in shape with 4 to 5 whorls. The spire is not very pointed. The apertural lip, or the lip of the shell at its opening, is thick and slightly reflected, or tilting upwards. [3]

The shell is generally very smooth, clean, and even shiny. Typically, the shell is a rich, dark tan and may have light brown streaks. Older shells may fade to a yellowish brown. The mantle is speckled black and can be seen if the shell is translucent. [4]

A very similar species of snail is Zachrysia trinitaria (Pfeiffer). Adults of Z. trinitaria can be distinguished from Z. provisoria by their large size, since they are 1.5 to 2.0 times bigger than Z. provisoria. [4]

Distribution

The native distribution of the snail is Cuba. Along with others in its subgenus, the snail is believed to be found in eastern and central Cuba, especially in the Granma Province. [5]

However, the current distribution of Z. provisoria includes:

Habitat

This species lives among leaf litter and among ornamental plants. [4] In its native habitat it is usually found in shady ravines, near leaf litter, shrubby areas, and hiding around rocks. [5] The snail prefers tropical climates, but can tolerate cool, dry winters. The snail will live in forested areas and even mountainous regions, provided there is a high level of moisture. [6]

Like other terrestrial snails Z. provisoria may use love-darts while mating. [7]

Feeding habits

Zachrysia provisoria is a polyphagous snail attacking a wide range of agricultural and horticultural plants. Known host plants include Bougainvillea , various citrus species, crepe myrtle, mango and star fruit (carambola). The snails can rasp the bark and epiderm of cuttings of several plants. [4]

This snail is often exported by accident from Florida to other areas and poses a quarantine problem for Florida. [4]

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References

This article incorporates public domain text, a public domain work of the United States Government from the reference. [4]

  1. "Molluscabase - Zachrysia provisoria (L. Pfeiffer, 1858)". www.molluscabase.org. Retrieved 2024-02-19.
  2. 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.
  3. Auffenberg, Kurt; Stange, Lionel. "Camaenidae (Snails) of Florida, Zachrysia provisoria, Caracolus marginelus (Mollusca: Pulmonata)". University of Florida Extension IFAS (EENY-118).
  4. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 PD-icon.svg Stange L. A. (created September 2004, updated March 2006). "Snails and Slugs of Regulatory Significance to Florida". Division of Plant Industry, Florida Department of Agriculture and Consumer Services. accessed 27 August 2010.
  5. 1 2 Pilsbry, Henry (1928). "Studies on West Indian Mollusks: The Genus Zachrysia". Proceedings of the Academy of Natural Sciences of Philadelphia. 80: 581–606 via JSTOR.
  6. Roth, Barry (1988). "Camaenid land snails (Gastropoda: PUlmonata) from the Eocene of southern California and their bearing on the history of the American Camaenidae" (PDF). Transactions of the San Diego Society of Natural History. 21 (12): 203–220 via Researchgate.net.
  7. "metazoa1". www.kingsnake.com. Retrieved 2024-02-19.