Rattus burrus

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Cladus: Sarcopterygii
Cladus: Rhipidistia
Cladus: Tetrapodomorpha
Cladus: Eotetrapodiformes
Cladus: Elpistostegalia
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Cladus: Synapsida
Cladus: Eupelycosauria
Cladus: Sphenacodontia
Cladus: Sphenacodontoidea
Cladus: Therapsida
Cladus: Theriodontia
Cladus: Cynodontia
Cladus: Eucynodontia
Cladus: Probainognathia
Cladus: Prozostrodontia
Cladus: Mammaliaformes
Classis: Mammalia
Subclassis: Trechnotheria
Infraclassis: Zatheria
Supercohors: Theria
Cohors: Eutheria
Infraclassis: Placentalia
Cladus: Boreoeutheria
Superordo: Euarchontoglires
Ordo: Rodentia
Subordo: Myomorpha
Superfamilia: Muroidea

Familia: Muridae
Subfamilia: Murinae
Genus: Rattus
Species: R. burrus
Vernacular names
English: Miller's Nicobar rat
தமிழ்: மில்லரின் நிக்கோபார் எலி
References

Rattus burrus in Mammal Species of the World.
Wilson, Don E. & Reeder, DeeAnn M. (Editors) 2005. Mammal Species of the World – A Taxonomic and Geographic Reference. Third edition. ISBN 0-8018-8221-4.

The nonsense rat, Nicobar Archipelago rat or Miller's Nicobar rat (Rattus burrus) is endemic to the Nicobar Islands in India. It lives on Great Nicobar, Little Nicobar, and Trinket islands. On Car Nicobar Island, Rattus palmarum and Rattus anadamanensis live instead.[1]

The species was first described in 1902 by Miller, who placed it in the genus Mus.[2] Today it is classified in the genus Rattus.[1] The origin of the name "nonsense rat" is uncertain, as Miller did not provide a common name in his original description.[2] More recent sources, such as the IUCN, include it.[1]
Habitat and distribution

The nonsense rat is endemic to the Nicobar Islands, where it is confined to isolated populations on the islands of Great Nicobar, Little Nicobar and Trinket. It inhabits tropical evergreen and semi-evergreen forests.[1]
Conservation

The nonsense rat is classified as endangered by the IUCN.[1]
References

Molur, S. (2016). "Rattus burrus". IUCN Red List of Threatened Species. 2016: e.T19325A22444340. doi:10.2305/IUCN.UK.2016-3.RLTS.T19325A22444340.en. Retrieved 19 November 2021.
Miller, Gerrit S. (May 1902). "The Mammals of the Andaman and Nicobar Islands". Proceedings of the United States National Museum. Washington DC: United States National Museum. 24 (1269): 751–795. doi:10.5479/si.00963801.24-1269.751. hdl:2027/hvd.32044107357428. OCLC 24358381.