They are only named as it were one by one, as man is eg the lion, the stag, the horse, the dog, and so on; though there is actual a single genus in the case of the so called bushy tailed animals, such as the horse, the ass, the mule, the jennet, and the animals that are called mules in Syria, from their resembling mules, though they are not strictly of the same species, for they mate with and breed from one another.