Greater blind mole-rat | |
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Scientific classification | |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | Rodentia |
Family: | Spalacidae |
Genus: | Spalax |
Species: | S. microphthalmus |
Binomial name | |
Spalax microphthalmus Gueldenstaedt, 1770 | |
Synonyms | |
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The greater blind mole-rat (Spalax microphthalmus) is a species of rodent in the family Spalacidae. [2] It is found in Russia and Ukraine.
The greater blind mole-rat is tailless. The eyes are covered by a membrane of skin and have atrophied lens cells enclosed in a vesicle and a retinal layer. It has prominent incisor teeth, which are used for burrowing. The fur is greyish, but can vary in color. It can grow to a size of 31 cm (12 in) and weigh up to 570 g (20 oz). Its dental formula is 1.0.0.31.0.0.3 [3]
The greater blind mole-rat is known from the steppes of Ukraine and from southern Russia between the Dnieper and the Volga rivers. Its range extends northwards to the Oryol to Kursk railway line and southwards to the North Caucasus. [4] It favours lowland habitats with black earth, avoiding sandy or loamy soils. It inhabits steppes and forest steppes, agricultural land, plantations, orchards and gardens and can be a pest. [1]
The greater blind mole-rat is a fossorial species that stays underground except when dispersing to new territories as juveniles, a period of great vulnerability. It lives a solitary existence, except during the breeding season. Due to its atrophied eyes it is totally blind. The paws are not modified like the ones of the moles; it digs with its incisor teeth instead. [3]
It is a herbivore and feeds on the roots of such plants as dandelions, umbellifers, chicory and tree seedlings, approaching them from underneath. It gathers excess food and stores it in its burrow, sometimes as much as 14 kg (30 lb) being collected. Breeding takes place once a year with a litter of two to five young being born in March. [1]
In general the greater blind mole-rat is a common species, but somewhat patchily distributed. The International Union for Conservation of Nature has rated its conservation status as being of "least concern" [1]
The Spalacidae, or spalacids, are a family of rodents in the large and complex superfamily Muroidea. They are native to eastern Asia, the Horn of Africa, the Middle East, and southeastern Europe. It includes the blind mole-rats, bamboo rats, mole-rats, and zokors. This family represents the oldest split in the muroid superfamily, and comprises animals adapted to a subterranean way of life. These rodents were thought to have evolved adaptations to living underground independently until recent genetic studies demonstrated they form a monophyletic group. Members of the Spalacidae are often placed in the family Muridae along with all other members of the Muroidea.
Spalax is a genus of rodent in the family Spalacidae, subfamily Spalacinae. It is one of two extant genera in the subfamily Spalacinae, alongside Nannospalax.
The blind mole-rats, also known as the fossorial or subterranean mole rats, are a subfamily (Spalacinae) of rodents in the family Spalacidae, found in eastern Europe and western & central Asia. The hystricognath mole-rats of the family Bathyergidae are completely unrelated, but some other forms are also in the family Spalacidae. Zokors, root rats, and bamboo rats are spalacids also sometimes referred to as mole rats.
The bobak marmot, also known as the steppe marmot, is a species of marmot that inhabits the steppes of Eastern Europe and Central Asia. It is a social animal and inhabits steppe grassland, including cultivated field borders. It hibernates for more than half the year. Litter sizes average about five offspring and it takes three years for the young marmots to reach sexual maturity. Male offspring leave the home colony after their second winter, and about 60% of mature females give birth in any one year.
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The Nigerian mole-rat is a species of rodent in the family Bathyergidae. It is found in northern Nigeria and Cameroon. A colonial, subterranean species, its natural habitats are tropical dry lowland grassland, riverside woodland and rocky places.
The sandy blind mole-rat is an endangered species of rodent in the family Spalacidae. It is endemic to Ukraine. It was first identified by Evdokia Reshetnik in 1939.
The giant blind mole-rat is a species of rodent in the family Spalacidae endemic to the North Caucasus region of Russia. It feeds on roots and tubers and lives underground in a burrow that it digs with its teeth.
The Bukovina blind mole-rat or (erroneously) the Balkan blind mole-rat is a species of rodent in the family Spalacidae found in Romania, Moldova, and Ukraine.
The Podolsk blind mole-rat or Podolian mole-rat is a species of rodent in the family Spalacidae. It is endemic to western and central Ukraine.
The King African mole-rat, King mole-rat, or Alpine mole-rat, is a burrowing rodent in the genus Tachyoryctes of family Spalacidae. It only occurs high on Mount Kenya, where it is common. Originally described as a separate species related to Aberdare Mountains African mole-rat, in 1910, some classify it as the same species as the East African mole-rat,.