Yasuda-kasube vs Cluster Bat

Bathyraja trachura compared with Myotis sodalis

Key Differences

• Yasuda-kasube is Least Concern while Cluster Bat is Near Threatened.

Taxonomic Classification

Rank	Yasuda-kasube	Cluster Bat
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Elasmobranchii	Mammalia (哺乳類)
Order	Rajiformes (ガンギエイ目)	Chiroptera (翼手目)
Family	Arhynchobatidae	Vespertilionidae
Genus	Bathyraja	Myotis
Species	Bathyraja trachura	Myotis sodalis

Evolutionary Relationship

Yasuda-kasube and Cluster Bat share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

Yasuda-kasube

LC — Least Concern

Cluster Bat

NT — Near Threatened

Physical Characteristics

Attribute	Yasuda-kasube	Cluster Bat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Yasuda-kasube

Cluster Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in United States. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Yasuda-kasube

The Black skate (Bathyraja trachura) is a species in the genus Bathyraja. It is currently classified as Least Concern on the IUCN Red List.

Cluster Bat

Myotis sodalis, the Indiana bat or cluster bat, is a medium-sized insectivorous bat in the family Vespertilionidae endemic to the eastern United States. It is one of the most endangered bats in North America, listed as Endangered under the U.S. Endangered Species Act and classified as Near Threatened by the IUCN. The species is named for its behavior of clustering in extremely dense hibernation groups—sometimes thousands of bats per square meter—in specific limestone caves and mines during winter. These few critical hibernacula make the species extremely vulnerable to disturbance and disease. Since 2007, Indiana bats have suffered severe mortality from white-nose syndrome, a fungal disease caused by Pseudogymnoascus destructans that disrupts hibernation and causes mass starvation. During summer, Indiana bats roost under loose bark of dead trees and forage for insects over forested landscapes and riparian areas. Foraging individuals consume moths, beetles, and flying insects. Conservation efforts include cave gate protection, white-nose syndrome research, and summer habitat management on public and private lands across the eastern US.