Child’s Rice Rat vs Collared Worm Salamander

Nephelomys childi compared with Oedipina collaris

Key Differences

• Child’s Rice Rat is Least Concern while Collared Worm Salamander is Data Deficient.

Taxonomic Classification

Rank	Child’s Rice Rat	Collared Worm Salamander
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Amphibia (Amphibians)
Order	Rodentia (Rodents)	Caudata (Caudata)
Family	Cricetidae	Plethodontidae
Genus	Nephelomys	Oedipina
Species	Nephelomys childi	Oedipina collaris

Evolutionary Relationship

Child’s Rice Rat and Collared Worm Salamander share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Child’s Rice Rat

LC — Least Concern

Collared Worm Salamander

DD — Data Deficient

Physical Characteristics

Attribute	Child’s Rice Rat	Collared Worm Salamander
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Child’s Rice Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

Collared Worm Salamander

Habitat

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

Child’s Rice Rat

The Child’s Rice Rat (Nephelomys childi) is a species in the genus Nephelomys. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

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.