Sorry, but that argument does not work: It requires a comprehensive
analysis to identify the number of monophyletic genera within the
Nereididae. We have had a couple of such analyses already and they
seem to recognize Hediste as valid.
Kristian Fauchald
>>> Roger Bamber <rnb at nhm.ac.uk> 10/10/01 04:57PM >>>
> To quote from Chambers S J & Garwood P R, 1992 (Polychaetes from
> Scottish Waters, Part 3. Family Nereidae. National Museums of Scotland,
> 65pp.), "Hediste is separated from other genera [of Nereidae] with
> conical paragnaths by the presence of simple chaetae (or fused
> falcigers) in posterior neuropodia. However, such simple chaetae occur
> in isolated species in various genera throughout the Nereinae, and
> their phylogenetic significance is, therefore, unclear. The genus
> Hediste is not, therefore, considered valid."
> Absolutely right.
> Roger
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