well seems both sp are still valid , and L pelligrini does seem to be a completely different sp
http://www.fishbase.org/Summary/spe...405&genusname=Leptobotia&speciesname=elongata
http://www.fishbase.org/Summary/spe...9&genusname=Leptobotia&speciesname=pellegrini
http://www.fishbase.org/Summary/spe...405&genusname=Leptobotia&speciesname=elongata
http://www.fishbase.org/Summary/spe...9&genusname=Leptobotia&speciesname=pellegrini