Acara Acraea vs Ojiro-ei

Acraea acara compared with Urogymnus granulatus

Key Differences

• Acara Acraea is Least Concern while Ojiro-ei is Vulnerable.

Taxonomic Classification

Rank	Acara Acraea	Ojiro-ei
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum	Arthropoda (節足動物)	Chordata (脊索動物)
Class	Insecta (昆虫)	Elasmobranchii
Order	Lepidoptera (チョウ目)	Myliobatiformes (トビエイ目)
Family	Nymphalidae (Brush-footed Butterflies)	Dasyatidae
Genus	Acraea	Urogymnus
Species	Acraea acara	Urogymnus granulatus

Evolutionary Relationship

Acara Acraea and Ojiro-ei share a common ancestor at the Kingdom level: Animalia. (動物)

Conservation Status

Acara Acraea

LC — Least Concern

Ojiro-ei

VU — Vulnerable

Physical Characteristics

Attribute	Acara Acraea	Ojiro-ei
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Acara Acraea

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Ojiro-ei

Acara Acraea

The Acara Acraea (Acraea acara) is a species in the genus Acraea. It is currently classified as Least Concern on the IUCN Red List. It typically inhabits diverse terrestrial and freshwater habitats. Habitat records describe it as occurring in diverse terrestrial and freshwater habitats.

Ojiro-ei

The coachwhip ray, Urogymnus granulatus, is a large elasmobranch in the family Urogymidae found across the Indo-Pacific region, ranging from the Red Sea and East Africa through South and Southeast Asia to northern Australia and the western Pacific islands. It inhabits shallow coastal waters including coral reef flats, sandy lagoons, seagrass beds, and estuarine habitats, where it forages for benthic invertebrates and small fishes buried in the substrate. The coachwhip ray is characterized by an oval disc and a long, whip-like tail with one or more venomous spines at its base, giving the species its common name. The disc reaches up to 1.4 meters in width, making it one of the larger members of its family. Urogymnus granulatus is ovoviviparous, giving birth to live young after internal development, and has low reproductive rates that make populations slow to recover from exploitation. The species is classified as Vulnerable by the IUCN due to significant declines caused by intensive coastal fisheries across its range, particularly in South and Southeast Asia where it is commonly caught as bycatch or targeted for its valuable meat, skin, and gill plates in local markets. Habitat degradation from coastal development and coral reef decline compounds the threat to wild populations.