Sus.j MAMMALIA UNGULATA. 39 



at the latter end of Autumn. Rutting season during the first half of 

 November. Doe goes with young five months and a half, and produces 

 in April. Two at a hirth, which are always male and female. 



* GEN. 25. EQUUS, Linn. 



* 60. E. Caballus, Linn. (Horse.) Tail uniformly covered with 

 long hair ; mane long and flowing : ears of moderate size : no dorsal line 

 or transverse band. 



E. Caballus, Desm. Mammal, p. 416. Flem. Brit. An. p. 27. Horse, Perm. 

 Brit. Zool. vol.i. p, 1. pi. 1. Common Horse, Shaw, Gen. Zooi. vol. 11. 

 p. 419. pi. 214. 



DESCRIPT. Offering every variety of size and colour : generally bay, or chestnut- 

 brown, more or less deep ; black, or grayish white : head long and tapering : teeth, 

 incis. jj, can. ^ (seldom present in the mare), mol. ^, = 40: ears erect and 

 pointed, much smaller than in the next species : a naked callosity on the inside of 

 the fore legs above the knee ; another on the hind legs just under the knee. 



Probably brought originally from Asia, where the species still exists in a truly 

 wild state. A small variety occurs in the Highlands of Scotland, and in the Shet- 

 land Islands, half-reclaimed, but can scarcely be considered as indigenous. Period 

 of gestation eleven months. Seldom more than one at a birth. Central incisors 

 cast at the age of two years and a half, and replaced by permanent ones ; the 

 adjoining pair at three and a half; the remaining ones at four and a half ; these last 

 replaced more slowly than the others. 



* 61. E. Asinus, Linn. (Ass.) Gray, inclining to reddish; with the 

 dorsal line, and a transverse band across the shoulders, black : ears very 

 large : tail terminating in a tuft of long hair. 



E. Asinus, Desm. Mammal, p. 414. Ass, Penn. Brit. Zool. vol. i. p. 13. 

 Shaw, Gen. Zool. vol. n. p. 429. pi. 216. 



DESCRIPT. Smaller than the Horse, and subject to less variation than that spe- 

 cies. Colour generally gray, more or less dark ; sometimes approaching to silvery 

 white, obscurely spotted with stains of a reddish cast, at other times dark brown or 

 dusky : a transverse black stripe upon the shoulders, crossing another of the same 

 colour down the middle of the back ; these marks always more or less obvious. 

 Head shorter and thicker than that of the horse : ears long and slouching : tail 

 tipped with long hair : no naked callosities on the hind legs. 



A native of the East. Introduced into this country towards the close of the tenth 

 century. Goes eleven months with young, and produces one at a birth. Breeds 

 occasionally with the Horse: the hybrid production termed a Mule or a Hinny, 

 according as the Ass is the male or female parent. 



GEN. 26. SUS, Linn. 



1 62. S. Scrofa, Linn. (Boar.) Tusks strong, triangular, of mode- 

 rate length, directed to one side. 



S. Scrofa, Desm. Mammal, p. 389. Flem. Brit. An. p. 28. Hog, Penn. Brit. 

 Zool. vol. i. p. 55. Wild Boar, and Common Hog, Shaw, Gen. Zool. vol.u. 

 p. 459. pi. 221 and 222. 



DIMENS. (Wild Boar.) Length of the head and body three feet three inches; 

 of the head one foot ; of the tail seven inches six lines : height about one foot nine 

 inches. 



DESCRIPT. Head elongated : neck short : body thick and muscular : legs short 

 and strong : ears rather short : eyes small : mouth large, with the upper lip pushed 



