A quick goolge does not tell me what are the actual differences in mtDNA genome that says "yes" this lot are not Homo sapiens, nor how much of a difference coun

A quick goolge does not tell me what are the actual differences in mtDNA genome that says "yes" this lot are not Homo sapiens, nor how much of a difference counts. Anyone? That's not how it works. The only "measurement" that really defines species is ability to have viable offspring. And even that border is wide and very fuzzy. Ligers and Tigons are good examples of this.