blind eel vs congo eel

blind eel and congo eel both are nouns.

Word	Noun	Adjective	Verb	Adverb
blind eel	Yes	No	No	No
congo eel	Yes	No	No	No

As nouns, blind eel and congo eel are synonyms defined as:

blind eel and congo eel: aquatic eel-shaped salamander having two pairs of very small feet; of still muddy waters in the southern United States

Other synonyms of blind eel include amphiuma, congo snake.

blind eel (noun)	congo eel (noun)
aquatic eel-shaped salamander having two pairs of very small feet; of still muddy waters in the southern United States	aquatic eel-shaped salamander having two pairs of very small feet; of still muddy waters in the southern United States