capped langur vs Common Water Rat

Trachypithecus pileatus compared with Hydromys chrysogaster

Key Differences

• capped langur is Vulnerable while Common Water Rat is Least Concern.

Taxonomic Classification

Rank	capped langur	Common Water Rat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Primates (Primates)	Rodentia (Rodents)
Family	Cercopithecidae (Old World Monkeys)	Muridae (Mice & Rats)
Genus	Trachypithecus	Hydromys
Species	Trachypithecus pileatus	Hydromys chrysogaster

Evolutionary Relationship

capped langur and Common Water Rat share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

capped langur

VU — Vulnerable

Common Water Rat

LC — Least Concern

Physical Characteristics

Attribute	capped langur	Common Water Rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

capped langur

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Common Water Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

capped langur

The Capped Langur (Trachypithecus pileatus) is a species in the genus Trachypithecus. It is currently classified as Vulnerable (VU) on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

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.