Alder's necklace shell vs Onca

Euspira nitida compared with Panthera onca

Key Differences

Alder's necklace shell is Least Concern while Onca is Near Threatened.

Taxonomic Classification

Rank	Alder's necklace shell	Onca
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Moluscos)	Chordata (cordados)
Class	Gastropoda (Gastrópodes)	Mammalia (mamíferos)
Order	Littorinimorpha (Littorinimorpha)	Carnivora (carnívoros)
Family	Naticidae	Felidae (Cats)
Genus	Euspira	Panthera (Big Cats)
Species	Euspira nitida	Panthera onca

Evolutionary Relationship

Alder's necklace shell and Onca share a common ancestor at the Kingdom level: Animalia. (Animals)

View Kingdom: Animalia

Conservation Status

Alder's necklace shell

LC — Least Concern

Onca

NT — Near Threatened

Population: ~64.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Alder's necklace shell	Onca
Diet	—	Carnivore
Average Lifespan	—	15 years
Average Length	—	1.9 m
Average Weight	—	100.0 kg

Habitat & Geographic Range

Alder's necklace shell

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Onca

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 6 distinct biome types spanning the Neotropic and Oceanian realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Colombia, Ecuador, and Venezuela. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Alder's necklace shell

The Alder's necklace shell (Euspira nitida) is a species in the genus Euspira. It is currently classified as Least Concern on the IUCN Red List. Typically found in terrestrial and aquatic habitats including forests and freshwater.

Onca

O maior felino das Américas, atingindo até 100 kg com corpo robusto e musculoso e pelagem com padrão de rosetas característico. Encontrado do México até a América do Sul, com populações mais expressivas na Amazônia e no Pantanal. Nadadores poderosos e predadores de topo, os jaguares desempenham papel fundamental na regulação das populações de presas. Classificado como Quase Ameaçado, com sua área de ocorrência diminuindo devido ao desmatamento.