Green Sea Turtle vs River Lamprey

Chelonia mydas compared with Lampetra ayresii

Key Differences

• Green Sea Turtle is Endangered while River Lamprey is Least Concern.

Taxonomic Classification

Rank	Green Sea Turtle	River Lamprey
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Reptilia (爬虫類)	Petromyzonti (Petromyzonti)
Order	Testudines (カメ)	Petromyzontiformes (ヤツメウナギ目)
Family	Cheloniidae (Sea Turtles)	Petromyzontidae
Genus	Chelonia (Green Sea Turtles)	Lampetra
Species	Chelonia mydas	Lampetra ayresii

Evolutionary Relationship

Green Sea Turtle and River Lamprey share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

Green Sea Turtle

EN — Endangered

Population: ~85.0K

Trend: Decreasing ↓

River Lamprey

LC — Least Concern

Physical Characteristics

Attribute	Green Sea Turtle	River Lamprey
Diet	Herbivore	—
Average Lifespan	80 years	—
Average Length	1.2 m	—
Average Weight	200.0 kg	—

Habitat & Geographic Range

Green Sea Turtle

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

Range

Distributed across Australia, Brazil, Costa Rica, Indonesia, and Mexico. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

River Lamprey

Green Sea Turtle

アオウミガメは最も大きなウミガメの一つです。甲羅ではなく軟骨と脂肪の緑色に由来して名付けられました。