346 CHARLES E. STOCKARD AND A. L. JOHNSON 



been obtained by crossing two pedigreed, high typed dachs- 

 hund dams with a pronounced type Pekingese sire of cham- 

 pion stock. In addition, one litter of five F! reciprocal hybrids 

 was obtained from a strong typed Pekingese dam by a good 

 male dachshund. There have been twenty-two FX hybrids in 

 all, and these are very uniform in size and type irrespective 

 of whether they were whelped from Pekingese or dachshund 

 dams. The hybrids are larger and more vigorous than either 

 parent stock and are capable of living through severe winters 

 in out-door kennels. 



In plate 67, a typical dachshund bitch is shown (fig. 1) 

 together with a less reduced photograph of a high typed 

 Pekingese dog (fig. 2). Actually the dachshund is larger and 

 heavier in weight than the Pekingese. The extremely con- 

 trasted head forms of the two breeds may be clearly seen in 

 these pictures and are even more strikingly shown by plate 

 68 (figs. 1 and 2). The dachshund head has a long, slender 

 muzzle and the jaws are perfectly formed, efficient in action 

 and with proper dental occlusion. On the other hand, the 

 facial skeleton of the Pekingese is extremely shortened, so 

 much so that the muzzle, which is so characteristic of the 

 dog family, is almost eliminated. The jaws are poorly formed 

 and the teeth are irregularly set with extensive malocclusion. 

 In the prize typed Pekingese, the mandible should not pro- 

 trude beyond the maxilla; it should be equally shortened, 

 so that the lower incisors fit in opposition with the upper. 

 However, there is considerable tendency towards slight prog- 

 nathism of the lower jaw, and even very carefully bred speci- 

 mens frequently show mild degrees of this defect. In spite 



PLATE 68 



EXPLANATION OF FIGURES 



Dachshund-Pekingese cross. Further study of the contrasted head features in 

 the pure breeds and the resulting expression in the first generation hybrids. 



1 Dachshund 1177 <j>. 



2 Pekingese 1118^. 



3-7 F! hybrids (same animals as shown in pi. 67, figs. 3-7). 



3 1888 J. 4 2046 <?. 5 1886 <?. 6 2047 ?. 7 1891 $. 



