Anguilla sucklandii vs eel

Anguilla sucklandii and eel both are nouns.

Word	Noun	Adjective	Verb	Adverb
Anguilla sucklandii	Yes	No	No	No
eel	Yes	No	No	No

As nouns, eel is a hypernym of Anguilla sucklandii; that is, eel is a word with a broader meaning than Anguilla sucklandii:

Anguilla sucklandii: New Zealand eel
eel: voracious snakelike marine or freshwater fishes with smooth slimy usually scaleless skin and having a continuous vertical fin but no ventral fins

Anguilla sucklandii (noun)	eel (noun)
New Zealand eel	voracious snakelike marine or freshwater fishes with smooth slimy usually scaleless skin and having a continuous vertical fin but no ventral fins
	the fatty flesh of eel; an elongate fish found in fresh water in Europe and America; large eels are usually smoked or pickled