Ground squirrel

The ground squirrels are members of the squirrel family of rodents (Sciuridae), which generally live on or in the ground, rather than trees. The term is most often used for the medium-sized ground squirrels, as the larger ones are more commonly known as marmots or prairie dogs, while the smaller and less bushy-tailed ground squirrels tend to be known as chipmunks. Together, they make up the "marmot tribe" of squirrels, Marmotini, a division within the large and mainly ground squirrel subfamily Xerinae, and containing six living genera. Well-known members of this largely Holarctic group are the marmots (Marmota), including the American groundhog, the chipmunks, the susliks (Spermophilus), and the prairie dogs (Cynomys). They are highly variable in size and habitus, but most are remarkably able to rise up on their hind legs and stand fully erect comfortably for prolonged periods. They also tend to be far more gregarious than other squirrels, and many live in colonies with complex social structures. Most Marmotini are rather short-tailed and large squirrels. At up to 8 kg (18 lb) or more, certain marmots are the heaviest squirrels.

Creeping vole

The creeping vole, sometimes known as the Oregon meadow mouse, is a small rodent in the family Cricetidae. Ranging across the Pacific Northwest of North America, it is found in forests, grasslands, woodlands, and chaparral environments. The small-tailed

Luciobarbus

Luciobarbus is a genus of ray-finned fishes in the family Cyprinidae. Its members are found in fresh and brackish waters of southern Europe, northern Africa, the wider Near East, the Aral and Caspian Seas, and rivers associated with these. Several species

Archboldomys

Archboldomys, the shrew-mice, are a genus of rodents in the family Muridae. They are carnivores that feed on invertebrates much like shrews do. An apparently smaller relatives of the true shrew-rats Chrotomys and Rhynchomys, Archboldomys are somewhat

Schwetzochromis neodon

Schwetzochromis neodon is a species of rheophilic cichlid endemic to the Democratic Republic of the Congo where it is only known from the Fwa River in the Congo Basin. It can reach a length of 10.7 centimetres (4.2 in) SL. It is currently the only known

Florentiamyidae

Florentiamyidae is a family of extinct rodents from North America. They are part of the Superfamily Geomyoidea according to R. L. Carroll 1988. They are known to have existed 33.3 to 15.97 mya. They are known from the Miocene of United States, Harrisonian

Mylagaulidae

The Mylagaulidae or mylagaulids are a prehistoric family of sciuromorph rodents. They are known from the Neogene of North America and China. The oldest member is the Late Oligocene Trilaccogaulus montanensis from living some 29 million years ago (Mya

Carasobarbus

Carasobarbus, the himris, is a small genus of ray-finned fishes in the family Cyprinidae. Its species are found in rivers, streams, lakes and ponds in Western Asia and Northwest Africa. C. canis can reach 66 cm (26 in) in total length, but most other

Orthochromis

Orthochromis is a genus of relatively small haplochromine cichlids native to rivers and lakes in Eastern and Middle Africa. Most of its species are rheophilic

Socotra golden-winged grosbeak

The Socotra golden-winged grosbeak or Socotra grosbeak is a finch endemic to Socotra, an island in the Indian Ocean off the coast of Yemen. R. socotranus is by some authorities held to be the only species of the then-monotypic genus Rhynchostruthus

Pimelodella brasiliensis

Pimelodella brasiliensis is a species of three-barbeled catfish of the family Heptapteridae. It is endemic to the Paraíba do Sul river basin in Brazil, although there are unconfirmed records from elsewhere. This species reaches a total length of 18.0 cm