Zebra Nerite / Zebra Snail
Phylum: Mollusca, Class: Gastropoda, Order: Neritida, Family: Neritidae, Genus: Vittina, Species: Vittina virginea · Neritidae (Nerite family) · Gastropod (snail/univalve), whole shell, spiral shape
Species
Vittina virginea
Shell Type
Gastropod (snail/univalve), whole shell, spiral shape
Family
Neritidae (Nerite family)
Size
Approximately 1 to 1.5 inches in length, which is average to large for this species. Adults typically range from 0.75 to 1.5 inches.
Color & Pattern
Striking and vibrant pattern featuring zigzag or undulating dark brown to black stripes over a lighter tan, yellowish, or olive-green background. The colors are natural and glossy, displaying a high-shine finish with a solid white aperture lip.
Rarity
Common in its native range and popular in the aquarium trade, though specific color morphs can be sought after.
Habitat
Found in brackish water environments, river mouths, mangrove swamps, and lower freshwater reaches of streams, often clinging to rocks, submerged wood, or vegetation.
Geographic Range
Caribbean basin, including the West Indies, Puerto Rico, Florida, and parts of Central and South America.
Description
A robust, oval-shaped marine/brackish gastropod shell featuring a low, compact spire and a very large body whorl. The surface is smooth and glossy with a thick, porcelain-like structure. It exhibits a classic, high-contrast zebra-stripe pattern that makes it exceptionally decorative, complemented by a smooth, white inner lip.
Key Features
Compact oval shape, low spire, large body whorl, and distinctive high-contrast zigzag zebra striping. The aperture has a flattened inner columellar area typical of nerites.
Collector Value
Moderately low commercial value due to availability, but highly valued by aquarists and casual shell collectors for its striking aesthetic patterns. Generally valued between $1 to $5 for individual specimens.
Condition Notes
Gem condition. The shell is fully intact, retains its original glossy finish and rich color contrast without fading or sun-bleaching. No apparent boring holes or major erosion.
Interesting Facts
Neritid snails are famous for their ability to tolerate a wide range of salinity from pure freshwater to full marine conditions. They are also popular in freshwater aquariums as efficient algae eaters.
Ecological Role
Serves an important role as an herbivore and algae grazer in brackish ecosystems, helping control microalgae growth on rocks and vegetation. Part of the food web for shorebirds and fish.
Similar Species
Vittina turrita and Neritina zebra, which can be distinguished by subtle differences in geographical origin, exact striping width, and spire prominence.
Beach Finding Tips
Look along brackish mangrove areas, river estuaries, and muddy or rocky shores in the Caribbean. Best found at low tide when searching exposed roots and rocks.