Komodo Dragon vs St. James' shell

Varanus komodoensis compared with Pecten maximus

Key Differences

Komodo Dragon is Endangered while St. James' shell is Least Concern.

Taxonomic Classification

Rank	Komodo Dragon	St. James' shell
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum	Chordata (สัตว์มีแกนสันหลัง)	Mollusca (มอลลัสกา)
Class	Reptilia (สัตว์เลื้อยคลาน)	Bivalvia (ชั้นไบวาลเวีย)
Order	Squamata (อันดับกิ้งก่าและงู)	Pectinida (Pectinida)
Family	Varanidae (Monitor Lizards)	Pectinidae
Genus	Varanus (Monitor Lizards)	Pecten
Species	Varanus komodoensis	Pecten maximus

Evolutionary Relationship

Komodo Dragon and St. James' shell share a common ancestor at the Kingdom level: Animalia. (สัตว์)

ดู: Kingdom: Animalia

Conservation Status

Komodo Dragon

EN — Endangered

Population: ~3.5K

Trend: Stable →

St. James' shell

LC — Least Concern

Physical Characteristics

Attribute	Komodo Dragon	St. James' shell
Diet	Carnivore	—
Average Lifespan	30 years	—
Average Length	2.6 m	—
Average Weight	70.0 kg	—

Habitat & Geographic Range

Komodo Dragon

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 4 distinct biome types spanning the Australasia and Indomalayan realms. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Indonesia. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

St. James' shell

Habitat

Native to Asia and Europe and South America, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Asia (China), Europe (8 countries), and South America (Chile).

Komodo Dragon

The Komodo dragon is the largest living lizard. It is found only on a few Indonesian islands.

St. James' shell

St. James' shell (Pecten maximus) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.