Adder’S-Mouth vs Oriental House Rat

Malaxis bayardii compared with Rattus tanezumi

Key Differences

• Adder’S-Mouth is Critically Endangered while Oriental House Rat is Least Concern.

Taxonomic Classification

Rank	Adder’S-Mouth	Oriental House Rat
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Liliopsida (Monocots)	Mammalia (Mammals)
Order	Asparagales (Asparagales)	Rodentia (Rodents)
Family	Orchidaceae	Muridae (Mice & Rats)
Genus	Malaxis	Rattus
Species	Malaxis bayardii	Rattus tanezumi

Conservation Status

Adder’S-Mouth

CR — Critically Endangered

Oriental House Rat

LC — Least Concern

Physical Characteristics

Attribute	Adder’S-Mouth	Oriental House Rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Adder’S-Mouth

Habitat

Typically found in grasslands, wetlands, forests, and cultivated landscapes.

Range

Distributed across Canada and United States. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Oriental House Rat

Habitat

Inhabits tropical and subtropical moist broadleaf forests within the Oceanian biogeographic realm.

Range

Widely distributed across Africa (Eswatini, Lesotho, South Africa), Asia (Philippines, Taiwan), and Oceania and the Pacific (Kiribati).

Adder’S-Mouth

The Adder’S-Mouth (Malaxis bayardii) is a species in the genus Malaxis. It is currently classified as Critically Endangered on the IUCN Red List. This species inhabits Typically found in grasslands, wetlands, forests, and cultivated landscapes, found across Canada and United States.