Skunkabas - I LOVE it!!
Here are the captures/captions in question:
1970: Ep #951 - After being attacked by the bat, Barnabas
agonizes that he's become Pepe LePu with that streak in his hair
- oh, no, wait - it's that he is once again vampire. ( But more so
that he's a vampire who looks like Pepe LePu. ;-) )1971: Ep #1212 - Gabriel has drawn the slip with the 'X.' Though this capture shows off Barn's Pepe LePu streak better: