Which term describes a male canine?

The term that describes a male canine is "dog." In canine terminology, "dog" is commonly used to refer specifically to a male of the species Canis lupus familiaris, which is the domestic dog.

The other terms have distinct meanings. "Canis" is the Latin genus name that encompasses all canines, including dogs, wolves, and other species in that family. "Bitch" specifically refers to a female dog, and while "wolf" denotes a distinct species within the Canidae family, it does not specify gender. Therefore, "dog" is the most accurate term when specifically identifying a male canine.