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A small bone on the ulnar side of the carpus in man and many mammals. See Illust. of Artiodactyla.

A division of mammals including the apes and monkeys. Sometimes used in the sense of Primates.

rtaining to the placenta; having, or characterized by having, a placenta; as, a placental mammal.

A division of Mammalia including those that have a placenta, or all the orders above the marsupials.

The mode of formation of the placenta in different animals; as, the placentation of mammals.

A nocturnal mammal (Perodictius potto) of the Lemur family, found in West Africa. It has rudimentary forefingers. Called also aposoro, and bush dog.

A ligament, of fascia, extending, in most mammals, from the ventral side of the ilium to near the symphysis of the pubic bones.

The highest order of mammals. It includes man, together with the apes and monkeys. Cf. Pitheci.

An order of large mammal

A genus of mammals including the raccoon.

Standing before; -- applied to a gland which is found in the males of most mammals, and is situated at the neck of the bladder where this joins the urethra. -- n.

The fifth ventricle in the mammalian brain. See Ventricle. B. G. Wilder.

er plate of the pterygoid process of the human skull, but which, in all vertebrates below mammals, is not connected with the posterior nares, but serves to connect the palatine bones with the point of suspension of the lower jaw. -- Pterygoid process (Anat.), a process projecting downward from either side of the sphen…

eveloped in Northwestern New Mexico, along the Rio Puerco, and are characterized by their mammalian remains.

A nontoxic diamine, C4H12N2, formed in the putrefaction of the flesh of mammals and some other animals.

t.), a bone between the base of the lower jaw and the skull in most vertebrates below the mammals. In reptiles and birds it articulates the lower jaw with the skull; in mammals it is represented by the malleus or incus.

es (Anat.), two pairs of lobes, or elevations, on the dorsal side of the midbrain of most mammals; the optic lobes. The anterior pair are called the nates, and the posterior the testes.

An animal having four feet, as most mammals and reptiles; -- often restricted to the mammals.

igor of heat] (Physiol.), a form of rigor mortis induced by heat, as when the muscle of a mammal is heated to about 50ºC. -- Rigor mortis ( Etym: [L. , rigor of death] , death stiffening; the rigidity of the muscles that occurs at death and lasts till decomposition sets in. It is due to the formation of myosin by the…

An order of mammals having two (rarely four) large incisor teeth in each jaw, distant from the molar teeth. The rats, squirrels, rabbits, marmots, and beavers belong to this order.