I see a little perspective foreshortening in the BUS detail image making the nearer denticles look closer-spaced, and I know the denticles above BUS to be a bit weaker (and therefore seemingly wider-spaced) on this specific variety. As a result, there's nothing in these images which doesn't strike me as normal for the variety.
I have to admit, though, this is one where the conventional thinking as regards the mechanism of origin bothers me slightly.
I have to admit, though, this is one where the conventional thinking as regards the mechanism of origin bothers me slightly.
























