PlanetCatfish.com

Hi! I just got this pleco at PetSmart that was labeled as a common pleco, but he doesn't look like one. He has gray squiggly markings all over his body and his dorsal fin is a series of points (almost like a serrated knife but still tapered down to his tail like all dorsal fins) when he spreads it out. I was hoping someone could help me identify him. Thanks.
P.S. His belly looks just like a common pleco's belly.

Common plecos have gray squiggly lines on their body. Are any of these pics like your fish?

Thanks for the reply. I must not be describing him right, because those pics look nothing like him. The biggest difference by far aren't the lines, although they do look different, but the spiked dorsal fin.

How about this?

Thanks again for the reply but that isn't my fish either. I do however have a gibbiceps.