Gibson's reclassification of the enoplan nemerteans (Enopla, Nemertea): a critique and cladistic analysis

Gibson's (1988) reclassification of the class Enopla (phylum Nemertea), and in particular the forming of the taxon Paramonostilifera, is assessed by a cladistic analysis based on 35 characters. This analysis does not support the reclassification, and it is suggested that the previous classification is kept for the time being, although it is recognized that certain of the higher categories are non-monophyletic and should be reclassified.