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 (動物)	Animalia (動物)
Phylum	Chordata (脊索動物)	Mollusca (軟体動物)
Class	Reptilia (爬虫類)	Bivalvia (二枚貝)
Order	Squamata (有鱗目)	Pectinida (イタヤガイ目)
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. (動物)

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

コモドオオトカゲ（Varanus komodoensis）は現存する最大のトカゲである。インドネシアのいくつかの島にのみ生息している。

St. James' shell

ホタテガイ(Pecten maximus)はIUCNレッドリストで軽度懸念(LC)に分類されています。分布域全体で広く生息し、個体数は安定しており、緊急の保全上の懸念はありません。