Dear Kevin and David
    I am looking forward in knowing about the phylogeny of the Bivalvia, as
well as of the Unoinoida in particular. The tree shown by David is very
interesting.
    In my experience and opinion, Etheriidae is actually polyphyletic in
present sense, because at least its South American representative, the
dimyarian Bartlettia, is in fact a form of (or at least a very close species
to) Anodontites tenebricosus (Mycetopodidae).
    Best wishes
    Luiz
__________________________________
Luiz Ricardo L. Simone [log in to unmask]
Museu de Zoologia da Universidade de São Paulo
Cx. Postal 42694
04299-970 São Paulo, SP, Brazil
__________________________________



>David, where do you get your reference(s) to support your statement that
>the "Etheridae is polyphyletic"?
>
>Cladisticly,
>
>Kevin
>
>Kevin S. Cummings
>Research Scientist
>Illinois Natural History Survey
>607 E. Peabody Drive
>Champaign, IL 61820
>[log in to unmask]
>http://www.inhs.uiuc.edu/cbd/collections/mollusk.html