Cricetidae Fischer 1817

Wilson, Don E. & Reeder, DeeAnn, 2005, Order Rodentia - Family Cricetidae, Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 2, Baltimore: The Johns Hopkins University Press, pp. 955-1189 : 955

Cricetidae Fischer 1817

Cricetidae Fischer 1817 , Mem. Soc. Imp. Nat. Moscow, 5: 372.

Genera: 130 genera with 681 species in 6 subfamilies:

Subfamily Arvicolinae Gray 1821

Genus Alticola Blanford 1881 (12 species)

Genus Arborimus Taylor 1915 (3 species)

Genus Arvicola Lacepede 1799 (3 species)

Genus Blanfordimys Argyropulo 1933 (2 species)

Genus Caryomys Thomas 1911 (2 species)

Genus Chionomys Miller 1908 (3 species)

Genus Dicrostonyx Gloger 1841 (8 species)

Genus Dinaromys Kretzoi 1955 (1 species)

Genus Ellobius G. Fischer 1814 (5 species)

Genus Eolagurus Argyropulo 1946 (2 species)

Genus Eothenomys Miller 1896 (8 species)

Genus Hyperacrius Miller 1896 (2 species)

Genus Lagurus Gloger 1841 (1 species)

Genus Lasiopodomys Lataste 1887 (3 species)

Genus Lemmiscus Thomas 1912 (1 species)

Genus Lemmus Link 1795 (5 species)

Genus Microtus Schrank 1798 (62 species)

Genus Myodes Pallas 1811 (12 species)

Genus Myopus Miller 1910 (1 species)

Genus Neodon Horsfield 1841 (4 species)

Genus Neofiber True 1884 (1 species)

Genus Ondatra Link 1795 (1 species)

Genus Phaiomys Blyth 1863 (1 species)

Genus Phenacomys Merriam 1889 (2 species)

Genus Proedromys Thomas 1911 (1 species)

Genus Prometheomys Satunin 1901 (1 species)

Genus Synaptomys Baird 1857 (2 species)

Genus Volemys Zagorodnyuk 1990 (2 species)

Subfamily Cricetinae Fischer 1817

Genus Allocricetulus Argyropulo 1932 (2 species)

Genus Cansumys G. M. Allen 1928 (1 species)

Genus Cricetulus Milne-Edwards 1867 (6 species)

Genus Cricetus Leske 1779 (1 species)

Genus Mesocricetus Nehring 1898 (4 species)

Genus Phodopus Miller 1910 (3 species)

Genus Tscherskia Ognev 1914 (1 species)

Subfamily Lophiomyinae Milne Edwards 1867

Genus Lophiomys Milne-Edwards 1867 (1 species)

Subfamily Neotominae Merriam 1894

Genus Baiomys True 1893 (2 species)

Genus Habromys Hooper and Musser 1964 (6 species)

Genus Hodomys Merriam 1894 (1 species)

Genus Isthmomys Hooper and Musser 1964 (2 species)

Genus Megadontomys Merriam 1898 (3 species)

Genus Nelsonia Merriam 1897 (2 species)

Genus Neotoma Say and Ord 1825 (22 species)

Genus Neotomodon Merriam 1898 (1 species)

Genus Ochrotomys Osgood 1909 (1 species)

Genus Onychomys Baird 1857 (3 species)

Genus Osgoodomys Hooper and Musser 1964 (1 species)

Genus Peromyscus Gloger 1841 (56 species)

Genus Podomys Osgood 1909 (1 species)

Genus Reithrodontomys Giglioli 1874 (20 species)

Genus Scotinomys Thomas 1913 (2 species)

Genus Xenomys Merriam 1892 (1 species)

Subfamily Sigmodontinae Wagner 1843

Genus Abrawayaomys Souza Cunha and Cruz 1979 (1 species)

Genus Abrothrix Waterhouse 1837 (9 species)

Genus Aepeomys Thomas 1898 (2 species)

Genus Akodon Meyen 1833 (41 species)

Genus Amphinectomys Malygin 1994 (1 species)

Genus Andalgalomys Williams and Mares 1978 (3 species)

Genus Andinomys Thomas 1902 (1 species)

Genus Anotomys Thomas 1906 (1 species)

Genus Auliscomys Osgood 1915 (3 species)

Genus Bibimys Massoia 1979 (3 species)

Genus Blarinomys Thomas 1896 (1 species)

Genus Brucepattersonius Hershkovitz 1998 (8 species)

Genus Calomys Waterhouse 1837 (12 species)

Genus Chelemys Thomas 1903 (3 species)

Genus Chibchanomys Voss 1988 (2 species)

Genus Chilomys Thomas 1897 (1 species)

Genus Chinchillula Thomas 1898 (1 species)

Genus Delomys Thomas 1917 (3 species)

Genus Deltamys Thomas 1917 (1 species)

Genus Eligmodontia F. Cuvier 1837 (4 species)

Genus Euneomys Coues 1874 (4 species)

Genus Galenomys Thomas 1916 (1 species)

Genus Geoxus Thomas 1919 (1 species)

Genus Graomys Thomas 1916 (4 species)

Genus Handleyomys Voss, Gómez-Laverde, and Pacheco 2002 (2 species)

Genus Holochilus Brandt 1835 (3 species)

Genus Ichthyomys Thomas 1893 (4 species)

Genus Irenomys Thomas 1919 (1 species)

Genus Juliomys González 2000 (2 species)

Genus Juscelinomys Moojen 1965 (3 species)

Genus Kunsia Hershkovitz 1966 (2 species)

Genus Lenoxus Thomas 1909 (1 species)

Genus Loxodontomys Osgood 1947 (2 species)

Genus Lundomys Voss and Carleton 1993 (1 species)

Genus Megalomys Trouessart 1881 (2 species)

Genus Megaoryzomys Lenglet and Coppois 1979 (1 species)

Genus Melanomys Thomas 1902 (3 species)

Genus Microakodontomys Hershkovitz 1993 (1 species)

Genus Microryzomys Thomas 1917 (2 species)

Genus Neacomys Thomas 1900 (8 species)

Genus Necromys Ameghino 1889 (9 species)

Genus Nectomys Peters 1860 (5 species)

Genus Neotomys Thomas 1894 (1 species)

Genus Nesoryzomys Heller 1904 (4 species)

Genus Neusticomys Anthony 1921 (5 species)

Genus Noronhomys Carleton and Olson 1999 (1 species)

Genus Notiomys Thomas 1890 (1 species)

Genus Oecomys Thomas 1906 (15 species)

Genus Oligoryzomys Bangs 1900 (18 species)

Genus Oryzomys Baird 1857 (43 species)

Genus Oxymycterus Waterhouse 1837 (16 species)

Genus Paralomys Thomas 1926 (1 species)

Genus Pearsonomys Patterson 1992 (1 species)

Genus Phaenomys Thomas 1917 (1 species)

Genus Phyllotis Waterhouse 1837 (13 species)

Genus Podoxymys Anthony 1929 (1 species)

Genus Pseudoryzomys Hershkovitz 1962 (1 species)

Genus Punomys Osgood 1943 (2 species)

Genus Reithrodon Waterhouse 1837 (2 species)

Genus Rhagomys Thomas 1917 (2 species)

Genus Rheomys Thomas 1906 (4 species)

Genus Rhipidomys Tschudi 1845 (17 species)

Genus Salinomys Braun and Mares 1995 (1 species)

Genus Scapteromys Waterhouse 1837 (2 species)

Genus Scolomys Anthony 1924 (2 species)

Genus Sigmodon Say and Ord 1825 (14 species)

Genus Sigmodontomys J. A. Allen 1897 (2 species)

Genus Tapecomys Anderson and Yates 2000 (1 species)

Genus Thalpomys Thomas 1916 (2 species)

Genus Thaptomys Thomas 1916 (1 species)

Genus Thomasomys Coues 1884 (36 species)

Genus Wiedomys Hershkovitz 1959 (1 species)

Genus Wilfredomys Avila-Pires 1960 (1 species)

Genus Zygodontomys J. A. Allen 1897 (2 species)

Subfamily Tylomyinae Reig 1984

Genus Nyctomys Saussure 1860 (1 species)

Genus Otonyctomys Anthony 1932 (1 species)

Genus Ototylomys Merriam 1901 (1 species)

Genus Tylomys Peters 1866 (7 species)

Discussion: The cricetid-murid question has persisted as the dominant theme, or uncertainty, involving the higher level classification of muroid rodents over the past century (see summaries in Carleton, 1980, and Carleton and Musser, 1984): in essence, should the various subfamilies be approximately equally apportioned between Cricetidae and Muridae ( Miller and Gidley, 1918; Simpson, 1945) or should most be placed under an all encompassing Muridae ( Alston, 1876; Ellerman, 1940; Thomas, 1896 —even these studies, however, accorded the fossorially specialized forms separate familial rank; i.e., the spalacines, rhizomyines, and myospalacines in various combinations). While the inclusive view of Muridae has gained acceptance over the latter half of the 20th century ( Hershkovitz, 1962; Hooper and Musser, 1964 a; McKenna and Bell, 1997), there are notable departures ( Chaline et al., 1977; Lavocat, 1978), and Reig (1980, 1981, 1984), in particular, has steadfastly espoused recognition of a separate Cricetidae , the contents of which correspond in large part to the taxa covered here. Principal subfamilial exceptions to Reig’s coverage are exclusion of certain African clades (Cricetomyinae, Dendromurinae, Nesomyinae), here arranged in a broadly defined Nesomyidae (as per Lavocat, 1973, 1978), and inclusion of Arvicolinae and Lophiomyinae , each of which Reig regarded as separate families. Accepting those adjustments, monophyly of the family finds general support in phylogenetic evaluation of genetic sequence data ( Dubois et al., 1999; Michaux and Catzeflis, 2000; Michaux et al., 2001 b; Robinson et al., 1997). Nevertheless, this cladistic hypothesis of Cricetidae should be viewed as provisional, and taxonomic sampling must be considerably expanded to reinforce its validity, notably with addition of groups such as Lophiomyinae and many more cladistically older members drawn from Cricetinae , Sigmodontinae , and Tylomyinae .

Although monophyletic on molecular trees, unambiguous diagnosis of so large and heterogeneous an assemblage would prove challenging with the morphological character base currently referenced in phylogenetic studies. We note that all members possess a biserial arrangement of the molar cusps, with retention of a longitudinal connection (mure/murid) among them and formation of a discrete anterocone(id) on the first molars. Such character states are likely ancestral for the superfamily, as are other traits exhibited by many cricetid species, in some cases a majority of them (three-rooted upper and two-rooted lower molars; possession of mesolophs(ids); malleus configuration parallel; tegmen tympani conformation; complete carotid circulatory pattern; entepicondylar foramen present; stomach unilocular-hemiglandular; full complement of male reproductive glands). However, parallel evolution of derived conditions for each of these characters is apparent at lower taxonomic levels within Cricetidae (subfamilies and tribes) and among other families of Muroidea as currently understood.

The fossil record of "cricetids" is comparatively rich in taxa, deep in time, and broad in geographic representation, and their phylogenetic systematics is correspondingly complicated. Several groups—e.g., cricetodontines, eucricetodontines, paracricetodontines, and cricetopines—have been variously acknowledged as families separate from Cricetidae ; McKenna and Bell (1997) recapitulated family-group rankings used for such extinct cricetids and retained most as tribes or subfamilies within Muridae sensu lato. Also see overview by Carleton and Musser (1984) and regional treatments by Freudenthal et al. (1992), Hugueney (1999), Kälin (1999), Korth (1994), Lavocat (1978), Martin (1980), Mein and Freudenthal (1971), and Rümmel (1999). The evolutionary fate of many of these extinct groups as progenitor to living cricetid assemblages is generally unclear and-or much disputed; where some phyletic link is plausibly documented, usually not until Miocene in age, we mention those groups in the subfamily comments. Geological range from the early Oligocene to Recent of Europe, late Eocene to Recent of Asia, late Miocene to Recent of Africa, late Eocene to Recent of North America, and early Pliocene to Recent of South America ( McKenna and Bell, 1997) .