gopher snake vs colubrid

gopher snake and colubrid both are nouns.

Word	Noun	Adjective	Verb	Adverb
gopher snake	Yes	No	No	No
colubrid	Yes	No	No	No

As nouns, colubrid is a hypernym of gopher snake; that is, colubrid is a word with a broader meaning than gopher snake:

gopher snake: large dark-blue nonvenomous snake that invades burrows; found in southern North America and Mexico
colubrid: mostly harmless temperate-to-tropical terrestrial or arboreal or aquatic snakes

Other hypernyms of gopher snake include colubrid snake.

gopher snake (noun)	colubrid (noun)
large dark-blue nonvenomous snake that invades burrows; found in southern North America and Mexico	mostly harmless temperate-to-tropical terrestrial or arboreal or aquatic snakes
bull snake of western North America that invades rodent burrows