Yes, the images shown on Animals4ever.com as Columbella ocellata and as
Mitrella ocellata, as well as the shell shown on gastropods.com as Pyrene
ocellata are all the same shell, and Pyrene ocellata Link, 1807 is the
correct name. However, there is another ocellata in the family, Nitidella
ocellata Gmelin, 1791, which is often listed as Mitrella ocellata. This
species is pictured on gastropods.com, as Nitidella ocellata.
Paul M.