Following the last incisor, and separated from it by a short interval, comes on each side in both jaws a long, pointed fang, the chief means by which the Cats seize and hold on to their prey. These are the _canines_, or dog-teeth, and correspond to the “eye-teeth” in ourselves, those adze-like teeth immediately following and slightly projecting beyond the last incisor. When the mouth is closed the lower canines are seen to bite in front of the upper, and to fit into the space between the latter and the incisors. The canines of the Cat are written thus, (1-1)/(1-1). Following the canines, but separated from them by a slight interval or _diastema_, are, in the upper jaw four, in the lower three teeth, which correspond to our “grinders,” or molars and premolars. In the upper jaw the foremost tooth of this set is as small as one of the incisors, and its crown is simple, or nearly so. The next two teeth are larger and have sharp, cutting edges, divided into three points, or _cusps_. The second of these two teeth is much the larger, its edge is more blade-like, and the front part of its inner edge sends off a strong blunt process, which is supported by a distinct root, so that this tooth has three roots instead of two like its predecessor; it is also of much greater size than any of those in front, and, biting like a scissor-blade against the corresponding tooth of the lower jaw, is called the _sectorial_, or _carnassial_ tooth. Behind it comes the last of the set, a small tooth with a transversely-set, almost flat crown. [Illustration: PERMANENT TEETH OF LION. _i. 3_, the third incisor; _c_, the canine; _p. 1_, _p. 2_, _p. 3_, the premolars; _m_, the molars.] In the lower jaw, the grinding series is represented by only three teeth, all more or less resembling the second of the series in the upper jaw. Of these the third is the largest, and is called the lower carnassial, biting, as it does, against the upper tooth of that name. In every case the teeth of the lower jaw bite _within_ those of the upper, and, the jaws being so articulated as to allow only of up and down motion, and being incapable of play from side to side, the molars and premolars entirely lose their character of grinders, and become trenchant, cutting up the food, in fact, in precisely the same manner as a pair of scissors.