"Upper Sectorial Teeth of Carnivora. I, Felis; II, Canis; III, Ursus, 1, anterior, 2, middle, and 3, posterior in position, and without distinct root, characteristic of the Ursidae." —The Encyclopedia Britannica, 1903

Carnivora

"Upper Sectorial Teeth of Carnivora. I, Felis; II, Canis; III, Ursus, 1, anterior, 2, middle, and 3,…

"When the corolla is separated into two unequal divisions, called the anterior, or lower, and posterior, or upper lips."—Darby, 1855

Ringent Corolla

"When the corolla is separated into two unequal divisions, called the anterior, or lower, and posterior,…

"The Red-Throated Dragon shows a large membranous expansion (b b) situated between the anterior (d d) and posterior extremities, and supported by the ribs. The dragon by this arrangement can take extensive leaps with perfect safety."—pettigrew, 1874

Red-Throated Dragon

"The Red-Throated Dragon shows a large membranous expansion (b b) situated between the anterior (d d)…

The posterior surface of the right femur.

Femur

The posterior surface of the right femur.

A posterior view of the nerves of the right lower extremity.

Leg Nerves

A posterior view of the nerves of the right lower extremity.

"A Great Nerve (Posterior Tibial) on the Back of the Leg, with its Accompanying Artery of the Same Name." — Blaisedell, 1904

Great nerve

"A Great Nerve (Posterior Tibial) on the Back of the Leg, with its Accompanying Artery of the Same Name."…

"Diagram illustrating the General Arrangement of the Nervous System. (posterior view.)" — Blaisedell, 1904

Nervous system

"Diagram illustrating the General Arrangement of the Nervous System. (posterior view.)" — Blaisedell,…

A posterior view of the radius and ulna.

Radius and Ulna

A posterior view of the radius and ulna.

"Schizomus crassicaudatus, a Tartarid Pedipalp. Dorsal view of a male with the appendages cut short. I to VI. The prosomatic appendages. a, Anterior plate. b, Posterior plate of the prosomatic carapace. prae-gen, Tergum of the praegenital somite. II, The eleventh somite of the opisthosoma. pa, Post-anal lobe of the male—a conical body with narrow basal stalk." — The Encyclopedia Britannica, 1910

Schizomus

"Schizomus crassicaudatus, a Tartarid Pedipalp. Dorsal view of a male with the appendages cut short.…

The posterior (dorsal) surface of the sternum.

Sternum

The posterior (dorsal) surface of the sternum.

An illustration of the tail of a horse.

Horse Tail

An illustration of the tail of a horse.

The posterior surface of the tibia and fibula of the right leg.

Tibia and Fibula

The posterior surface of the tibia and fibula of the right leg.