The Old World flycatchers are a large family, the Muscicapidae, of small passerine birds mostly restricted to the Old World. These are mainly small arboreal insectivores, many of which, as the name implies, take their prey on the wing. The family includes 324 species and is divided into 51 genera.
The Muroidea are a large superfamily of rodents, including mice, rats, voles, hamsters, gerbils, and many other relatives. They occupy a vast variety of habitats on every continent except Antarctica. Some authorities have placed all members of this group into a single family, Muridae, due to difficulties in determining how the subfamilies are related to one another. The following taxonomy is based on recent well-supported molecular phylogenies.
Gerbillinae is one of the subfamilies of the rodent family Muridae, it includes the gerbils, jirds and sand rats. Once known as desert rats, the subfamily includes about 110 species of African, Indian, and Asian rodents, including sand rats and jirds, all of which are adapted to arid habitats. Most are primarily active during the day, making them diurnal, and almost all are omnivorous.
Lowe's gerbil is distributed mainly in Sudan; Jebel Marra. Less than 250 individuals of this species are thought to persist in the wild.
The Somalian gerbil is found only in Somalia.
The Khartoum gerbil is found mainly in Sudan.
Wagner's gerbil is a gerbil that is native mainly to the Nile Delta, Israel, the Sinai, Syria, Iraq and the Arabian Peninsula. It also referred to as the rough-tailed dipodil or Wadi Hof gerbil. They are solo, burrowing mammals that are nocturnally active.
James's gerbil is a species of rodent endemic to the eastern coast of Tunisia.
The greater short-tailed gerbil is a rodent found mainly in Morocco.
Botta's gerbil is a species of gerbil endemic to Sudan and possibly northern Kenya. According to the International Union for Conservation of Nature, it was listed as Least Concern in 1996 until it was listed as Data Deficient in 2004. According to a 2013 book, it is known from a few specimens taken from four or five localities in a small area between the rivers White Nile and Blue Nile; its habitat is fields of vegetables and cereals. Aside from this information, nothing else is known about the species including its population and threats.
Harwood's gerbil is distributed mainly in Kenya.
Dunn's gerbil is a rodent species distributed mainly in Eritrea, Ethiopia, Somaliland and Djibouti. It is an animal of dry grassland and rocky plains. It is also sometimes called the "Somalia gerbil", not to be confused with the Somalian gerbil or the Somali gerbil.
The Agag gerbil is distributed mainly in southern Mauritania to northern Nigeria and Sudan. IUCN lists the junior synonyms Gerbillus cosensi and G. dalloni as critically endangered.
Gerbillus is a genus that contains most common and the most diverse gerbils. In 2010, after morphological and molecular studies Dipodillus was ranged as a subgenus of Gerbillus, however some taxonomic authorities continue to separate them.
Dipodillus is a genus of rodent in the family Muridae. It is sometimes classified as a subgenus of the genus Gerbillus. It contains the following species:
Mackilligin's gerbil also known as Mackilligin's dipodil, is a species of rodent in the family Muridae. It occurs in the southeastern deserts of Egypt and Sudan, around the area of the Halaib Triangle. It has been grouped with Dipodillus nanus, but is now considered specifically distinct.
The rupicolous gerbil is a species of rodent in the family Muridae. It is found only in Mali. Its natural habitats are dry savanna and rocky areas.
Echimyidae is the family of neotropical spiny rats and their fossil relatives. This is the most species-rich family of hystricognath rodents. It is probably also the most ecologically diverse, with members ranging from fully arboreal to terrestrial to fossorial to semiaquatic habits. They presently exist mainly in South America; three members of the family also range into Central America. Species of the extinct subfamily Heteropsomyinae formerly lived on Cuba, Hispaniola, and Puerto Rico in the Antilles, probably until the arrival of Europeans. Some authorities consider the nutria from southern and central South America to be a part of this family.
