So, I don't want to rock the boat as I've only just come back to the site after quite some time but if you zoom in on the picture, you can actually count 10 dorsal rays.
It may not be P. pardalis but I am adamant it belongs in the genus. Many of the "common" species are mass farmed and hybridisation has and does occur, hence patterning can be unreliable.
As per Planet Catfish says on identification of Pterygoplichthys:
"Pterygoplichthys can be identified by the number of rays in the dorsal fin. More than 10 indicates that it's a Pterygoplichthys. Most other plecos have 8 or fewer rays (in particular the larger Hypostomus species that are most likely to be confused with Pterygoplichthys)."
Sorry OP for the confusion. Please do ask elsewhere for a confirmation but I guarantee 110% it's a "common" plec that's going to grow to around 14" or so.
EDIT: Asked Steven Grant, one of the "PC Experts" - he agrees on the genus.