Systematic treatment may not be needed for some taxa. A taxon may be illustrated but not included in the systematic descriptions because no new or significant information is available. Conversely, a taxon may be discussed in the text but not illustrated, in which case it may be appropriate to include the discussion within a section titled 'Taxonomic remarks' or 'Taxonomic summaries', with only a minimum of information provided, for example name and authorship of the taxon; Plate and figure, and text-figure numbers; and GSC type specimen numbers (e.g. GSC Bulletin 417, p. 46–47).