gaits such as the rack of the Saddlebred, the largo of the Paso Fino, or the running walk of the Tennessee Walking Horse. Like all lateral ambling gaits, the footfall pattern is the same as the walk (left hind, left front, right hind, right front), but differs from the walk in that it can be performed at a range of speeds, from the speed of a typical fast walk up to the speed of a normal canter. Some Icelandic horses prefer to tölt, while others prefer to trot; correct training can improve weak gaits, but the tölt is a natural gait present from birth. Two varieties of the tölt are considered incorrect by breeders. The first is an uneven gait called a "Pig's Pace" or "piggy-pace" that is closer to a two-beat pace than a four-beat amble. The second is called a Valhopp and is a tölt and canter combination most often seen in untrained young horses or horses that mix their gaits. Both varieties are normally uncomfortable to ride. The Icelandic also performs a pace called a skeið, flugskeið or "flying pace". The horses with a strong natural ability to perform the tölt appear to be those which are heterozygous for the DMRT3 mutation. The Faroese Horse and the Nordlandshest/Lyngshest of Norway share common ancestry with the Icelandic horse and some individuals of these breeds have the capacity to tölt, although it is not as commonly used. Paso gaits The Peruvian Paso and Paso Fino are two horse breeds developed in Latin America that have smooth innate intermediate gaits. Both descended from jennets that came to the Americas with the Spanish. The Paso Fino has several speed variations called (from slowest to fastest) the paso fino, paso corto, and paso largo. All have an even 1-2-3-4 rhythm. The paso fino gait is very slow, performed mainly for horse show competition. Horses are ridden over a "fino strip", which is usually plywood set into the ground, so the judges can listen for absolute regularity of footfall. The paso corto is an ambling gait of moderate speed, similar to the singlefoot. The paso largo is similar to the rack and is the fastest speed exhibited by the breed. The speed is attained by extending the stride while maintaining cadence. Some Paso Finos may perform a diagonal gait known as trocha akin to the fox trot. Many Paso Fino trainers in the