Abditomys Abeomelomys Aethomys Anisomys Anonymomys †Antemus †Anthracomys Apodemus Apomys Archboldomys Arvicanthis Baiyankamys Bandicota Batomys †Beremendimys Berylmys Bullimus Bunomys †Canariomys Carpomys †Castillomys †Castromys †Chardinomys Chingawaemys Chiromyscus Chiropodomys Chiruromys Chrotomys Coccymys Colomys Congomys Conilurus †Coryphomys Crateromys Crossomys Cremnomys Crunomys Dacnomys Dasymys Dephomys Desmomys †Dilatomys Diomys Diplothrix Echiothrix Eropeplus †Euryotomys Golunda Gracilimus Grammomys Hadromys Haeromys Halmaheramys Hapalomys Heimyscus †Hooijeromys †Huaxiamys †Huerzelerimys Hybomys Hydromys Hylomyscus Hyomys Hyorhinomys Kadarsanomys †Karnimata Komodomys †Kritimys Lamottemys Leggadina Lemniscomys Lenomys Lenothrix Leopoldamys Leporillus Leptomys Limnomys Lorentzimys Macruromys Madromys Malacomys Mallomys †Malpaisomys Mammelomys Margaretamys Mastacomys Mastomys Maxomys Melasmothrix Melomys Mesembriomys Microhydromys Micromys †Mikrotia Millardia Mirzamys Montemys Muriculus Musseromys Mus Mylomys Myomyscus Myotomys Nesokia Nesoromys Nilopegamys Niviventer Notomys Ochromyscus Oenomys †Orientalomys Otomys Palawanomys †Paraethomys †Parapodemus Papagomys Parahydromys Paraleptomys Paramelomys Parotomys †Parapelomys Paucidentomys Paruromys Paulamys Pelomys Phloeomys Pithecheir Pithecheirops Pogonomelomys Pogonomys Praomys †Progonomys Protochromys †Qianomys Pseudohydromys Pseudomys †Ratchaburimys Rattus Rhabdomys †Rhagamys †Rhagapodemus Rhynchomys †Saidomys Saxatilomys Serengetimys Solomys Sommeromys Soricomys †Spelaeomys Srilankamys Stenocephalemys †Stephanomys Stochomys Sundamys Taeromys Tarsomys Tateomys Thallomys Thamnomys Tokudaia Tonkinomys Tryphomys Uromys Vandeleuria Vernaya Waiomys †Wushanomys Xenuromys Xeromys †Yunomys Zelotomys Zyzomys The Old World rats and mice, part of the subfamily Murinae in the family Muridae, comprise at least 519 species.

Some genera have been grouped, such as the hydromyine water rats, conilurine or pseudomyine Australian mice, or the phloeomyine Southeast Asian forms.

The vlei rats in the genera Otomys and Parotomys are often placed in a separate subfamily, Otomyinae, but have been shown to be closely related to African murines in spite of their uniqueness.

The following phylogeny of 16 Murinae genera, based on molecular phylogenetic analysis of the Interphotoreceptor Retinoid Binding Protein (IRBP) gene, is from Jansa & Weksler (2004: 264).

[7] Phloeomys Micromys Maxomys Niviventer Sundamys Rattus Rhynchomys Otomys Aethomys Rhabdomys Grammomys Tokudaia Mus Mastomys Praomys Hylomyscus The following is a list of Murinae genus divisions ordered by the continents that they are endemic to.

They treated the Otomyinae as a separate subfamily, but all molecular analyses conducted to date have supported their inclusion in the Murinae as relatives of African genera.