Brook-Side Alder vs Collared Worm Salamander

Alnus serrulata compared with Oedipina collaris

Key Differences

• Brook-Side Alder is Least Concern while Collared Worm Salamander is Data Deficient.

Taxonomic Classification

Rank	Brook-Side 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 serrulata	Oedipina collaris

Conservation Status

Brook-Side Alder

LC — Least Concern

Collared Worm Salamander

DD — Data Deficient

Physical Characteristics

Attribute	Brook-Side Alder	Collared Worm Salamander
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brook-Side Alder

Habitat

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

Range

Distributed across Canada and United States.

Collared Worm Salamander

Habitat

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

Brook-Side Alder

The Brook-Side Alder (Alnus serrulata) 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.