Borneo cat shark vs Collared Worm Salamander

Apristurus platyrhynchus compared with Oedipina collaris

Key Differences

• Borneo cat shark is Least Concern while Collared Worm Salamander is Data Deficient.

Taxonomic Classification

Rank	Borneo cat shark	Collared Worm Salamander
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Amphibia (Amphibians)
Order	Carcharhiniformes (Ground Sharks)	Caudata (Caudata)
Family	Scyliorhinidae	Plethodontidae
Genus	Apristurus	Oedipina
Species	Apristurus platyrhynchus	Oedipina collaris

Evolutionary Relationship

Borneo cat shark and Collared Worm Salamander share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Borneo cat shark

LC — Least Concern

Collared Worm Salamander

DD — Data Deficient

Physical Characteristics

Attribute	Borneo cat shark	Collared Worm Salamander
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Borneo cat shark

Habitat

Typically found in marine environments from coastal waters to deep ocean.

Range

Found in Taiwan.

Collared Worm Salamander

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Borneo cat shark

The Borneo Cat Shark (Apristurus platyrhynchus) is a species in the genus Apristurus. It is currently classified as Least Concern on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.

Collared Worm Salamander

The Collared Worm Salamander, known scientifically as <em>Oedipina collaris</em>, is a slender, elongated salamander belonging to the family Plethodontidae, the lungless salamanders. <em>Oedipina collaris</em> is characterised by its worm-like body form, extremely elongated trunk with many vertebrae, short limbs, and a long tail — morphological features that adapt the species for a burrowing or semi-fossorial lifestyle. As a plethodontid salamander, <em>Oedipina collaris</em> lacks lungs and respires entirely through its moist skin, making it highly dependent on humid environments. The species inhabits freshwater habitats, moist forests, and wetlands. Detailed biological traits including typical lifespan, body length, and weight are poorly documented for this species in available literature. The Collared Worm Salamander is currently assessed as Data Deficient on the IUCN Red List, indicating that insufficient information is available to determine its conservation status accurately, and further research on the species' distribution and population trends is required.