Zachrysia provisoria

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Zachrysia provisoria
Cubanbrownsnail 02.jpg
A Zachrysia provisoria in Indian Rocks Beach, Florida.
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Heterobranchia
clade Euthyneura
clade Panpulmonata
clade Eupulmonata
clade Stylommatophora
informal group Sigmurethra
Superfamily:
Helicoidea
Family:
Camaenidae
Genus:
Zachrysia
Species:
Z. provisoria
Binomial name
Zachrysia provisoria
(Pfeiffer, 1858)

Zachrysia provisoria, commonly known as the Cuban Brown Snail is a species of air-breathing land snail, terrestrial pulmonate gastropod mollusk in the family Zachrysiidae. [1]

Contents

Description

The shell is medium-sized (25–30 mm width), globose in shape with 4 to 5 rapidly expanding whorls. The shell is translucent so that the speckled black mantle shows clearly through the shell of the living animal. The shell is usually thick and strong, but in acidic environments it can be thin and fragile. The body whorl is increasing in size more than those of spire. There is no umbilicus. The shell is sculptured with fairly regular, strong, curved axial ribs. Fresh specimens are with rich dark tan covering, sometimes with light brown axial streaks. Older specimens are yellowish brown. The lip and columella is white. [2]

Individuals of Z. provisoria use love darts during mating. [3]

A very similar species of snail is Zachrysia trinitaria (Pfeiffer), from Cuba, which has recently been found in South Florida. 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. [2]

Distribution

The distribution of Z. provisoria includes:

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. [4]

Habitat

This species lives among leaf litter and among ornamental plants. [2]

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. [2]

This snail is often exported by accident from Florida to other areas and thus poses a quarantine problem for Florida. [2]

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References

This article incorporates public domain text, a public domain work of the United States Government from the reference. [2]

  1. ↑ "Molluscabase - Zachrysia provisoria (L. Pfeiffer, 1858)". www.molluscabase.org. Retrieved 2024-02-19.
  2. 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.
  3. ↑ "metazoa1". www.kingsnake.com. Retrieved 2024-02-19.
  4. ↑ 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.
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