The question also came to mind as to why British art rock bands always get biological nomenclature wrong, which is to say that they get it wrong in the two examples of which I am aware. The scientific name of Giant Hogweed is Heracleum mantegazzianum, but Genesis (as I confirmed from the CD booklet) gives it as "HERACLEUM MANTEGAZZIANI". Along similar lines, Yes has a song called The Fish (Schindleria Praematurus), which is apparently named after a real species of fish, whose correct name is actually Schindleria praematura.
The Wikipedia entry informs me that the English name of Schindleria praematura is Schindler's Fish . . . which should not be confused with Schindler's List . . .