Collared Worm Salamander vs Costa Rica Worm Salamander

Oedipina collaris compared with Oedipina cyclocauda

Key Differences

• Collared Worm Salamander is Data Deficient while Costa Rica Worm Salamander is Near Threatened.

Taxonomic Classification

Rank	Collared Worm Salamander	Costa Rica Worm Salamander
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class same	Amphibia (両生類)	Amphibia (両生類)
Order same	Caudata (有尾目)	Caudata (有尾目)
Family same	Plethodontidae	Plethodontidae
Genus same	Oedipina	Oedipina
Species	Oedipina collaris	Oedipina cyclocauda

Evolutionary Relationship

Collared Worm Salamander and Costa Rica Worm Salamander share a common ancestor at the Genus level: Oedipina.

Conservation Status

Collared Worm Salamander

DD — Data Deficient

Costa Rica Worm Salamander

NT — Near Threatened

Physical Characteristics

Attribute	Collared Worm Salamander	Costa Rica Worm Salamander
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Collared Worm Salamander

Habitat

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

Costa Rica Worm Salamander

Habitat

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

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.