ameba vs endameba

ameba and endameba both are nouns.

Word	Noun	Adjective	Verb	Adverb
ameba	Yes	No	No	No
endameba	Yes	No	No	No

As nouns, endameba is a hyponym of ameba; that is, endameba is a word with a more specific, narrower meaning than ameba:

ameba: naked freshwater or marine or parasitic protozoa that form temporary pseudopods for feeding and locomotion
endameba: any ameba of the genus Endamoeba

ameba (noun)	endameba (noun)
naked freshwater or marine or parasitic protozoa that form temporary pseudopods for feeding and locomotion	any ameba of the genus Endamoeba