黑頦嶺裸鼻雀 vs Common Water Rat

Anisognathus notabilis compared with Hydromys chrysogaster

Taxonomic Classification

Rank	黑頦嶺裸鼻雀	Common Water Rat
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Chordata (脊索动物门)	Chordata (脊索动物门)
Class	Aves (鳥綱)	Mammalia (哺乳動物)
Order	Passeriformes (雀形目)	Rodentia (啮齿目)
Family	Thraupidae	Muridae (Mice & Rats)
Genus	Anisognathus	Hydromys
Species	Anisognathus notabilis	Hydromys chrysogaster

Evolutionary Relationship

黑頦嶺裸鼻雀 and Common Water Rat share a common ancestor at the Phylum level: Chordata. (脊索动物门)

Conservation Status

黑頦嶺裸鼻雀

LC — Least Concern

Common Water Rat

LC — Least Concern

Physical Characteristics

Attribute	黑頦嶺裸鼻雀	Common Water Rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

黑頦嶺裸鼻雀

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Distributed across Colombia, Ecuador, and Norway.

Common Water Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

黑頦嶺裸鼻雀

Black-chinned Mountain-Tanager（Anisognathus notabilis）在IUCN红色名录中被列为无危（LC）物种。该物种在其分布范围内广泛存在，种群数量稳定，目前无直接保护关切。

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.