Alder's necklace shell vs Buckelwal

Euspira nitida compared with Megaptera novaeangliae

Key Differences

• Alder's necklace shell is Least Concern while Buckelwal is Vulnerable.

Taxonomic Classification

Rank	Alder's necklace shell	Buckelwal
Kingdom same	Animalia (hayvan)	Animalia (hayvan)
Phylum	Mollusca (Yumuşakçalar)	Chordata (Kordalılar)
Class	Gastropoda (Karından bacaklılar)	Mammalia (memeliler)
Order	Littorinimorpha (Littorinimorpha)	Cetacea (Whales & Dolphins)
Family	Naticidae	Balaenopteridae (Rorquals)
Genus	Euspira	Megaptera (Humpback Whales)
Species	Euspira nitida	Megaptera novaeangliae

Evolutionary Relationship

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

Conservation Status

Alder's necklace shell

LC — Least Concern

Buckelwal

VU — Vulnerable

Population: ~80.0K

Trend: Increasing ↑

Physical Characteristics

Attribute	Alder's necklace shell	Buckelwal
Diet	—	Carnivore
Average Lifespan	—	50 years
Average Length	—	15.0 m
Average Weight	—	30.0 t

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.

Buckelwal

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 11 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), and South America (Colombia, Ecuador, Venezuela). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

Buckelwal

Among the most acrobatic of the great whales, humpback whales are renowned for their complex, haunting songs sung by males during breeding season — some lasting hours and evolving over time. Reaching 16 meters and 30 tonnes, they undertake the longest migrations of any mammal. Found in all oceans, humpbacks feed on krill and small fish using cooperative bubble-net feeding. Populations have largely recovered from historic whaling.

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden