(Redirected from Vlei rat)

African vlei rats (Otomys), also known as groove-toothed rats, live in many areas of sub-Saharan Africa. Most species live in marshlands, grasslands, and similar habitats[2] and feed on the vegetation of such areas, occasionally supplementing it with roots and seeds. The name "vlei" refers to the South African term for intermittent, seasonal, or perennial bodies of standing water.

African vlei rats
Temporal range: Late Pliocene - Recent
Otomys irroratus 8231s.jpg
Otomys irroratus, the Southern African vlei rat, a large specimen grazing on clover.
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Rodentia
Family: Muridae
Subfamily: Murinae
Genus: Otomys
F. Cuvier, 1824

26, see text

  • Anchotomys Thomas, 1918[1]
  • Euryotis Brants, 1827
  • Lamotomys Thomas, 1918
  • Oreinomys Trouessart, 1880
  • Oreomys Heuglin, 1877
  • Palaeotomys Broom, 1937
  • Prototomys Broom, 1948

Otomys are compact rodents with a tendency to shorter faces and legs than other types of rats. The tails also are shorter than most Muridae, typically between one third and two thirds of the body length.[3] The coat colour varies according to species,[2] but generally they have the brown-to-grey agouti coats typical of mice and other small wild rodents. Species living in warm or temperate regions tend to have unusually large ears for murids (e.g. Otomys irroratus), whereas some of the alpine species, such as Otomys sloggetti have markedly smaller ears. (However, the latter species may no longer belong in the genus Otomys.)

Depending on the species adult Otomys have a body length between 12 and 22 cm (5–9 inches) and weigh 90 to 260 grams (3–9 oz).


[4] Genus Otomys - groove-toothed or vlei rats


  1. ^ "Genus Otomys", Mammal Species of the World, 3rd ed.
  2. ^ a b The Kingdon Pocket Guide to African Mammals, Jonathan Kingdon (2004) Russel Friedman Books ISBN 1-875091-14-9
  3. ^ Mills, Gus & Hes, Lex (1997). The Complete Book of Southern African Mammals. Cape Town: Struik Publishers. ISBN 0947430555.
  4. ^ "Otomys" Archived 2011-11-08 at the Wayback Machine, Mammal Species of the World, 3rd ed.
  5. ^ a b c d e f g [1], Specific limits and emerging diversity patterns in East African populations of laminate-toothed rats, genus Otomys (Muridae: Murinae: Otomyini): Revision of the Otomys typus complex.