----------------+--------+---------+---------+-------------+----------- | English| | | | French | Long- | | | | Domestic | legged | African | Chinese | Wild Boar, | Boar, from | Male. | Female. | Male. | from Cuvier.| Cuvier. ----------------+--------+---------+---------+-------------+----------- Dorsal | | | | | vertebræ | 15 | 13 | 15 | 14 | 14 | | | | | Lumbar | 6 | 6 | 4 | 5 | 5 +--------+---------+---------+-------------+----------- Dorsal and | | | | | lumbar together | 21 | 19 | 19 | 19 | 19 | | | | | Sacral | 5 | 5 | 4 | 4 | 4 +--------+---------+---------+-------------+----------- Total number | | | | | of vertebræ | 26 | 24 | 23 | 23 | 23 ----------------+--------+---------+---------+-------------+----------- {75} Some semi-monstrous breeds deserve notice. From the time of Aristotle to the present time solid-hoofed swine have occasionally been observed in various parts of the world. Although this peculiarity is strongly inherited, it is hardly probable that all the animals with solid hoofs have descended from the same parents; it is more probable that the same peculiarity has reappeared at various times and places. Dr. Struthers has lately described and figured[167] the structure of the feet; in both front and hind feet the distal phalanges of the two greater toes are represented by a single, great, hoof-bearing phalanx; and in the front feet, the middle phalanges are represented by a bone which is single towards the lower end, but bears two separate articulations towards the upper end. From other accounts it appears that an intermediate toe is likewise sometimes superadded. [Illustration: Fig. 4.--Old Irish Pig, with jaw-appendages. (Copied from H. D. Richardson on Pigs.)]