OK, I couldn' t find it last night, but here it is:

From " The Deer of North America" by Leonard Lee Rue III

" The canine teeth of deer are not the meat-piercing canines of the dog family. A deer' s canines so closely resemble the incisor teeth that they are often classed and counted as such. In rare instances, deer have what are known as maxillary canine teeth in the upper jaw. These are rudimentary and serve no purpose, since there are no opposing teeth. Many times these teeth do not erupt through the gums, and most people would be unaware of their presence. biologist locate unruptured canines by scraping the upper jaw.

C.W. Severnghaus found only 23 upper canine teeth in 18,000 whitetail deer he examined, or 0.1 percent. The farther south one goes, the more canine teeth are found in deer. Charles M. Loveless & Richard F. Harlow found four canine teeth in an examination of 95 deer in Florida, for 4.2 percent. At the Wilder Wildlife Refuge in Texas, 162 whitetail skulls disclosed 49 canine teeth in 29 of the animals. Some of the skulls had only 1 tooth, some had both. Twenty-six of the teeth were rudimentary and did not protrude through the gums. Among females, 18 percent had upper canines; among males, 17 percent had them. In Venezuela, E. Boelioni found four large canine teeth in 10 deer that he had examined, a total of 40 percent. As noted in chapter 4, the musk deer and the Chinese water deer have greatly elongated, functional, stabbing, maxillary canine teeth - tusk - and no antlers. The muntjacs, or " barking" deer, of Southeastern Asia have both tusk and antlers. Biologists believe that the canine teeth diminished in prehistoric deer with the evolution of antlers. Some other members of the deer family, such as the caribou, also have canine teeth. Elk usually have well-developed maxillary canines, and thousands of elk were once killed so that these teeth could be worn as decorations by Indians and by members of the Fraternal Order of Elks."