[33] Grizzly bear (_Ursus horribilis_, ORD).--_Hair_ long, short on the front, very short between and anterior to the eyes, blacker and coarser on the legs and feet, longer on the shoulders, throat, and behind the thighs, and beneath the belly, and paler on the snout; _ears_ short, rounded; _front_ arquated, the line of the profile continued upon the snout, without any indentation between the eyes; _eyes_ very small, destitute of any remarkable supplemental lid; _iris_ burnt sienna or light reddish brown; _muffle of the nostrils_ black, the sinuses very distinct and profound; _lips_, particularly the superior one, anteriorly extensile, with a few rigid hairs or bristles; _tail_ very short, concealed by the hair. The hair gradually diminishes in length upon the leg, but the upper part of the foot is still amply furnished; _teeth, incisores_ six, the lateral one with a tubercle on the lateral side; _canines_ large, robust, prominent; a single false molar behind the canine, remaining _molares_ four, of which the anterior ones are very small, that of the upper jaw particularly, that of the lower jaw resembling the second false molar of the common dog; _anterior feet_, claws elongated, slender _fingers_, with five suboval naked tubercles separated from the palm, from each other, and from the base of the claws by dense hair; _palm_ on the anterior, half naked, transversely oval; base of the palm with a rounded naked tubercle, surrounded by the hair; _posterior feet_ with the sole naked, the nails moderate, more arquated, and shorter than the anterior ones. The nails do not in the least diminish in width at the tip, but they become smaller towards that part only from diminishing from beneath. "Testicles suspended in separate pouches, at the distance of from two to four inches from each other." Lewis and Clarke. They vary exceedingly in colour, and pass through the intermediate gradations from a dark brown to a pale fulvous, and a grayish. Dimensions (from the prepared Specimen).