whipsnake vs colubrid snake

whipsnake and colubrid snake both are nouns.

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

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

whipsnake: any of several small fast-moving snakes with long whiplike tails
colubrid snake: mostly harmless temperate-to-tropical terrestrial or arboreal or aquatic snakes

Other hypernyms of whipsnake include colubrid.

whipsnake (noun)	colubrid snake (noun)
any of several small fast-moving snakes with long whiplike tails	mostly harmless temperate-to-tropical terrestrial or arboreal or aquatic snakes