to snoo-finity ... and beyond!
Welcome to footballa's page.
Contributor score: 1
This question is likely not important for two reason:
They're both Trypansomastigotes, so of course they look almost the same.
You can differentiate these two species clinically as they have very little clinical similarity in patient presentation.
For these reasons there's little to no reason you would be expected to differentiate these two species by histology alone