California alder vs Collared Worm Salamander

Alnus rhombifolia compared with Oedipina collaris

Key Differences

• California alder is Least Concern while Collared Worm Salamander is Data Deficient.

Taxonomic Classification

Rank	California alder	Collared Worm Salamander
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Magnoliopsida (Dicots)	Amphibia (Amphibians)
Order	Fagales (Beeches & Oaks)	Caudata (Caudata)
Family	Betulaceae	Plethodontidae
Genus	Alnus	Oedipina
Species	Alnus rhombifolia	Oedipina collaris

Conservation Status

California alder

LC — Least Concern

Collared Worm Salamander

DD — Data Deficient

Physical Characteristics

Attribute	California alder	Collared Worm Salamander
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

California alder

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Found in Canada.

Collared Worm Salamander

Habitat

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

California alder

The California alder (Alnus rhombifolia) is a species in the genus Alnus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

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.