It has perhaps not been observed hitherto that the terms Digitigrada, Unguligrada, and Plantigrada fully apply to the Arthropoda, or that the manner in which the animals treat the…

That excessive development of the epidermis which gives rise to a nail takes place, in the Horse, not only upon the dorsal surface of the terminal joint of the digit, but upon its…

Dr. [Philip] Sclater submitted a classification of the Ruminating Artio-dactyls to the Section, in which he separated the Antilocapra from the other Unguligrades.

Unguligrades (L. ungula, hoof) have reduced the number of digits present in their limbs. The unguligrade foot makes contact with the ground at the tips of the most distal digits an…