|Roper, F.C.S. (1858) Notes on some new species and varieties of British marine Diatomaceae.|
Quarterly Journal of Microscopical Science 6: 17-25, with one plate (I).
Only plate (medium resolution)
Most images originally drawn at 400 times magnification except figure 5b (1000 times) and figures 1b,2b and 12a (magnification not specified).      Figure_Legend (opens in a new window)