2. The _coronary band_ (Fig. 27, _c_) lies between the perioplic band and the sensitive laminæ or fleshy leaves. It presents a prominent convex band or cushion about three-fourths of an inch wide, which extends entirely around the foot from one bulb of the heel to the other. In front it directly covers the anterior extensor tendon of the toe, and at the sides the lateral surfaces of the os coronæ and the upper part of the lateral cartilages, while farther back towards the heels the lateral cartilages project considerably above both coronary and perioplic bands. The coronary band is more convex (rounded) in front than on the sides of the foot, and is flattened in the region of the bulbs of the heels. Its surface is thickly covered with villi, which are longer and stronger than those of the perioplic band. At the bulbs of the heels the coronary band turns forward and inward along the fleshy frog nearly to its summit. This portion of the coronary band is from one-third to one-half an inch wide, and is called the _bar portion of the coronary band_. It is also covered with villi, which are directly continuous with those of the fleshy frog. =The coronary band secretes the principal part (middle layer) of the horny wall of the hoof, including the bar portion (bars) of the wall.= [Illustration: FIG. 29. Plantar surface of a foot deprived of its horny capsule by prolonged maceration: _a_, laminæ of the bars; _b_, velvety tissue of the sole; _c_, velvety tissue of the frog; _d_, median cleft of the fleshy frog, into which the velvety tissue dips; _e_, bulbar portion of the perioplic band, which passes insensibly into the velvety tissue of the fleshy frog.]