Order ARTIODACTYLA I99 



No open space between lacrymal and nasal bones, fig. 



lOSb, d ,..^. 5 



5. Skull elongate, fig. 108^; prominent ridge at top of skull be- 

 tween horns or horn bases 



domestic cow, bull, or ox, Bos taunts 



Fig. 108. — Dorsal views of skulls of ungulates: a, goat; b, cow; 

 c, sheep ; d, bison. 



