συμφωνα με αυτο
http://www.planetcatfish.com/catelog...enus_id=75#166 θα ελεγα μαλλον armatulus παρα costatus.
περαν των φωτο γραφει επισης για το καθενα στο "identification".
armatulus:
This species has been misidentified as Platydoras costatus for decades, only in late 2008 was it recognised as P. armatulus. Orinocodoras eigenmanni can sometimes be offered for sale labeled as a Striped Raphael Cat or suchlike. This contaminant is most easily distinguished by its longer, more elongate snout and longer adipose fin. The contrasting white stripes on Platydoras armatulus are also considerably brighter, particularly on youngsters.
costatus:
This species was long misidentified as the widely distributed species commonly available in the hobby, however now appears to be restricted to two rivers in eastern South America. The common species in the hobby is Platydoras armatulus.