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One of several species of small, jumping, murine rodents, of the genus Gerbillus. In their leaping powers they resemble the jerboa. They inhabit Africa, India, and Southern Europe.

An order of mammals; the Rodentia. -- Gli"rine, a.

A rodent.

One of several North American burrowing rodents of the genera Geomys and Thomomys, of the family Geomyidæ; -- called also pocket gopher and pouched rat. See Pocket gopher, and Tucan.

d made into necklaces by the natives. -- Ground pig (Zoöl.), a large, burrowing, African rodent (Aulacodus Swinderianus) about two feet long, allied to the porcupines but with harsh, bristly hair, and no spines; -- called also ground rat. -- Ground pigeon (Zoöl.), one of numerous species of pigeons which live largely…

A small European rodent (Cricetus frumentarius). It is remarkable for having a pouch on each side of the jaw, under the skin, and for its migrations.

A rodent of the genus Lepus, having long hind legs, a short tail, and a divided upper lip. It is a timid animal, moves swiftly by leaps, and is remarkable for its fecundity.

es; burgrass (Cenchrus tribuloides). -- Hedgehog rat (Zoöl.), one of several West Indian rodents, allied to the porcupines, but with ratlike tails, and few quills, or only stiff bristles. The hedgehog rats belong to Capromys, Plagiodon, and allied genera. -- Hedgehog shell (Zoöl.), any spinose, marine, univalve shell…

Like, or allied to, the porcupines; -- said of a group (Hystricomorpha) of rodents.

A genus of rodents, including the porcupine.

Any small jumping rodent of the genus Dipus, esp. D. Ægyptius, which is common in Egypt and the adjacent countries. The jerboas have very long hind legs and a long tail. [Written also gerboa.]

causes the seed to roll to roll and jump about. -- Jumping deer (Zoöl.), a South African rodent (Pedetes Caffer), allied to the jerboa. -- Jumping jack, a toy figure of a man, jointed and made to jump or dance by means of strings. -- Jumping louse (Zoöl.), any of the numerous species of plant lice belonging to the f…

A group of rodents, including the hares. They have four incisors in the upper jaw. Called also Duplicidentata.

Any one of several species of small arctic rodents of the genera Myodes and Cuniculus, resembling the meadow mice in form. They are found in both hemispheres.

A small European rodent (Eliomys nitela), allied to the dormouse.

or all those placental mammals that have a brain with few or no cerebral convolutions, as Rodentia, Insectivora, etc.

A very singular rodent (Lophiomys Imhausi) of Northeastern Africa. It is the only known representative of a special family (Lophiomyidæ), remarkable for the structure of the skull. It has handlike feet, and the hair is peculiar in structure and arrangement.

Any rodent of the genus Arctomys. The common European marmot (A. marmotta) is about the size of a rabbit, and inhabits the higher regions of the Alps and Pyrenees. The bobac is another European species. The common American species (A. monax) is the woodchuck.

a typical characteristic. It includes the lower orders, as the Insectivora, Cheiroptera, Rodentia, and Edentata.

A South American rodent (Cavia rupestris), allied to the Guinea pig, but larger; -- called also rock cavy.