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A primary division of the Mammalia, including the monotremes and marsupials, in which no placenta is formed.

cava. Innominate bone (Anat.), the great bone which makes a lateral half of the pelvis in mammals; hip bone; haunch bone; huckle bone. It is composed of three bones, ilium, ischium, and pubis, consolidated into one in the adult, though separate in the fetus, as also in many adult reptiles and amphibians. -- Innominate…

An order of mammals which feed principally upon insects.

athing in; breath; specif. (Physiol.), the drawing of air into the lungs, accomplished in mammals by elevation of the chest walls and flattening of the diaphragm; -- the opposite of expiration.

to the lunar in the carpus, and to a part of the astragalus in the tarsus of man and most mammals.

A nocturnal carnivorous mammal (Cercoleptes caudivolvulus) of South America, about as large as a full-grown cat. It has a prehensile tail and lives in trees. It is the only representative of a distinct family (Cercoleptidæ) allied to the raccoons. Called also potto, and honey bear.

A small mammal (Hyrax Capensis), found in South Africa. It is of about the size of a rabbit, and closely resembles the daman. Called also rock rabbit.

The soft woolly hair which covers most parts of the mammal fetus, and in man is shed before or soon after birth.

ween them. The larynx is connected with the pharynx by an opening, the glottis, which, in mammals, is protected by a lidlike epiglottis.

One of a family (Lemuridæ) of nocturnal mammals allied to the monkeys, but of small size, and having a sharp and foxlike muzzle, and large eyes. They feed upon birds, insects, and fruit, and are mostly natives of Madagascar and the neighboring islands, one genus (Galago) occurring in Africa. The slow lemur or kukang of…

A large, savage, carnivorous mammal (Felis leopardus). It is of a yellow or fawn color, with rings or roselike clusters of black spots along the back and sides. It is found in Southern Asia and Africa. By some the panther (Felis pardus) is regarded as a variety of leopard. Hunting leopard. See Cheetah. Leopard cat (Zoö…

Any viverrine mammal of the genus Prionodon, inhabiting the East Indies and Southern Asia. The common East Indian linsang (P. gracilis) is white, crossed by broad, black bands. The Guinea linsang (Porana Richardsonii) is brown with black spots.

A large carnivorous feline mammal (Felis leo), found in Southern Asia and in most parts of Africa, distinct varieties occurring in the different countries. The adult male, in most varieties, has a thick mane of long shaggy hair that adds to his apparent size, which is less than that of the largest tigers. The length, h…

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

An animal covered with bony scales, as crocodiles among reptiles, and the pangolins among mammals.

usually regarded as degraded Hemiptera. To this group belong of the lice of man and other mammals; as, the head louse of man (Pediculus capitis), the body louse (P. vestimenti), and the crab louse (Phthirius pubis), and many others. See Crab louse, Dog louse, Cattle louse, etc., under Crab, Dog, etc.…

A group of Mammalia, including the marsupials and monotremes; - - so called because the corpus callosum is rudimentary.

A fibrous and muscular band lying within the longitudinal axis of the tongue in many mammals, as the dog.

A genus of extinct mammals allied to the cats, and having in the upper jaw canine teeth of remarkable size and strength; -- hence called saber-toothed tigers.

An extensive group of insects which are parasitic on birds and mammals, and feed on the feathers and hair; -- called also bird lice. See Bird louse, under Bird.