THE OX AND ITS VARIETIES. 613 
English parks, also certain large domestic races, such as the 
Holstein and Friesland breeds. From another fossil species 
(Bos longifrons Owen) arose the so-called brown cattle of 
Switzerland, and the ‘“‘runts” of the Scottish Highlands. 
Still other domestic races are traced back to another fossil 
“UdMOC 101JV—"MOD OYSaMIOG JO W0}@[PAS— ses “SLT 
quaternary species, Bos frontosus Nilsson. Our present 
races of domestic cattle, however, do not represent a genuine 
species, but a number of races which have descended from 
* several fossil species; the name Bos taurus (Fig. 532) is 
simply, then, a conventional name (Carus’ Zoologie). The 
bison is known to breed with cattle in the Western States, 
