I've seen a few people on trademe in the last few years selling Pleco's, 90% of them are "common pleco's" but you get the odd person calling it a goldspot,redspot,sailfin either trying to make it sound fancy and get more $$$$ or because the shop selling it to him/her has used those names. If there was a system in place worldwide that has the proper name (scientific) and the latin name and then last but not least the common name, now this should be ONE name.. nothing fancy... just a simple name so there are NO abbreviations or other words similar that can be substituted in (like whats happening now)