American Jack Knife Clam vs common razor clam

Ensis leei compared with Ensis ensis

Key Differences

• American Jack Knife Clam is Not Evaluated while common razor clam is Least Concern.

Taxonomic Classification

Rank	American Jack Knife Clam	common razor clam
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Mollusca (มอลลัสกา)	Mollusca (มอลลัสกา)
Class same	Bivalvia (ชั้นไบวาลเวีย)	Bivalvia (ชั้นไบวาลเวีย)
Order same	Adapedonta (Adapedonta)	Adapedonta (Adapedonta)
Family same	Pharidae	Pharidae
Genus same	Ensis	Ensis
Species	Ensis leei	Ensis ensis

Evolutionary Relationship

American Jack Knife Clam and common razor clam share a common ancestor at the Genus level: Ensis.

Conservation Status

American Jack Knife Clam

NE — Not Evaluated

common razor clam

LC — Least Concern

Physical Characteristics

Attribute	American Jack Knife Clam	common razor clam
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

American Jack Knife Clam

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Found across Europe (6 countries).

common razor clam

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

American Jack Knife Clam

The American Jack Knife Clam (Ensis leei) is a species in the genus Ensis. Native to Europe, inhabiting ecosystems characteristic of the region.

common razor clam

<em>Ensis ensis</em>, the common razor clam, is a bivalve mollusk in the family Pharidae, order Adapedonta. It is distributed along the northeastern Atlantic coastline, with documented populations in Belgium, Denmark, Norway, and Sweden. The species is assessed as Least Concern by the IUCN, suggesting stable populations across much of its range. Common razor clams typically inhabit sandy intertidal and shallow subtidal zones, burrowing rapidly into sediment using their muscular foot to evade predators and avoid desiccation. Their elongated shell, resembling an old-fashioned straight razor, is a distinctive morphological feature of the genus Ensis. <em>Ensis ensis</em> is a suspension feeder, typically drawing in water and filtering phytoplankton and organic particles through its siphons. This feeding strategy makes it an important component of coastal benthic communities. Razor clams play an ecological role as both filter feeders improving water clarity and as prey items for shorebirds, flatfish, and marine mammals. Biological traits such as precise lifespan, body measurements, and diet composition vary across populations and remain incompletely characterized. The species is commercially harvested in parts of its range and is considered a minor fishery resource in Scandinavian waters.

Shared Countries

Both species can be found in 4 countries:

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