Common Ringlet vs Common Water Rat

Coenonympha tullia compared with Hydromys chrysogaster

Key Differences

• Common Ringlet is Extinct while Common Water Rat is Least Concern.

Taxonomic Classification

Rank	Common Ringlet	Common Water Rat
Kingdom same	Animalia (동물)	Animalia (동물)
Phylum	Arthropoda (절지동물)	Chordata (척삭동물)
Class	Insecta (곤충)	Mammalia (포유류)
Order	Lepidoptera (나비목)	Rodentia (설치류)
Family	Nymphalidae (Brush-footed Butterflies)	Muridae (Mice & Rats)
Genus	Coenonympha	Hydromys
Species	Coenonympha tullia	Hydromys chrysogaster

Evolutionary Relationship

Common Ringlet and Common Water Rat share a common ancestor at the Kingdom level: Animalia. (동물)

Conservation Status

Common Ringlet

EX — Extinct

Common Water Rat

LC — Least Concern

Physical Characteristics

Attribute	Common Ringlet	Common Water Rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Common Ringlet

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (27 countries) and North America (Canada, United States).

Common Water Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Common Ringlet

링글릿나비(Coenonympha tullia)는 IUCN 적색목록에서 절멸(EX)로 분류된다. 야생 및 사육 환경에서 현존 개체가 없는 것으로 확인되어 멸종이 선언된 종이다.

Common Water Rat

<em>Hydromys chrysogaster</em>, commonly known as the common water rat or rakali, is a semi-aquatic rodent in the family Muridae, native to Australia and New Guinea. It is classified as Least Concern by the IUCN, reflecting its relatively stable population across a broad range of freshwater and estuarine habitats on the Australian continent and associated islands. The species typically inhabits the banks of rivers, lakes, wetlands, and estuaries, where it constructs burrows in streambanks. It is highly adapted for an aquatic lifestyle, with partially webbed hind feet, a flattened head, and a dense waterproof coat. <em>Hydromys chrysogaster</em> is a carnivore, typically feeding on fish, crustaceans, mussels, frogs, and aquatic invertebrates, which it often carries to elevated feeding platforms to consume. The species is nocturnal and crepuscular, most active during early morning and evening hours near the water's edge. Biological traits including average lifespan, body length, and weight remain poorly documented in standardized databases, though adults are generally robust for a rodent, reportedly reaching body lengths of 20–35 cm excluding the tail. Geographic range details for this particular record remain incompletely documented in available data sources. Ecologically, the common water rat is an important apex predator in small-scale freshwater food webs and serves as an indicator species for wetland health in Australian riparian systems.