cebolinha vs common freshwater nerite

Allium schoenoprasum compared with Theodoxus fluviatilis

Taxonomic Classification

Rank	cebolinha	common freshwater nerite
Kingdom	Plantae (plantas)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Mollusca (Moluscos)
Class	Liliopsida (Monocots)	Gastropoda (Gastrópodes)
Order	Asparagales (Asparagales)	Cycloneritida (Cycloneritida)
Family	Amaryllidaceae	Neritidae
Genus	Allium	Theodoxus
Species	Allium schoenoprasum	Theodoxus fluviatilis

Conservation Status

cebolinha

LC — Least Concern

common freshwater nerite

LC — Least Concern

Physical Characteristics

Attribute	cebolinha	common freshwater nerite
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

cebolinha

Habitat

Inhabits tropical and subtropical moist broadleaf forests and temperate coniferous forests spanning the Oceanian and Palearctic realms.

Range

Widely distributed across Africa (Algeria, Seychelles), Asia (Taiwan), Europe (14 countries), North America (United States), Oceania and the Pacific (Tuvalu), and South America (Brazil, Colombia).

common freshwater nerite

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Found across Europe (11 countries).

cebolinha

Chives (Allium schoenoprasum) are a perennial bulb-forming herb in the family Amaryllidaceae, widely distributed across temperate regions of Europe, Asia, and North America. They represent the smallest species in the genus Allium, which also includes onions, garlic, and leeks, and are the only Allium species native to both the Old and New Worlds. Chives produce slender, hollow, cylindrical leaves and round, pale purple to lilac flower heads atop leafless stalks, both of which are edible and valued for their mild onion flavour. In the wild, chives grow in a range of habitats including rocky slopes, mountain meadows, riverbanks, and forest edges, typically preferring cool, moist conditions with well-drained soils. They spread both by seed and by vegetative division of their bulb clumps, forming dense patches. As one of the classic fines herbes of French cuisine, chives have been cultivated for culinary use for over 5,000 years and are now grown worldwide in gardens and as a commercial crop. The flowers are also attractive to bees and other pollinators. The IUCN classifies Allium schoenoprasum as Least Concern, with widespread natural populations throughout its native range. While not threatened globally, localised populations may be affected by habitat loss or overgrazing in alpine or subalpine settings.

common freshwater nerite

<em>Theodoxus fluviatilis</em>, commonly known as the common freshwater nerite, is a small aquatic gastropod mollusc belonging to the family Neritidae. This species is widely distributed across Europe, with documented occurrences in Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Hungary, Latvia, Norway, and Sweden. It typically inhabits freshwater environments, including rivers, streams, and lakes, where it grazes on algae and biofilm on hard substrates such as rocks and submerged wood. The common freshwater nerite is assessed as Least Concern on conservation metrics, reflecting its broad distribution and relatively stable populations across much of its European range. Biological traits of this species remain poorly documented in the scientific literature. <em>Theodoxus fluviatilis</em> plays an ecological role as a grazer in freshwater benthic communities, contributing to the regulation of algal growth on hard surfaces. The species typically favors clean, well-oxygenated waters and can serve as an indicator of water quality in freshwater systems. Its distinctive small, dome-shaped shell with variable patterning makes it recognizable among freshwater invertebrates.