PS-Beware of the occasional stem that's not obvious, e.g. Glycymeris
has a stem of Glycymerid-
This can get into issues of etymology. A few places have the family
for Pleurocera as Pleuroceratidae rather than Pleuroceridae based on
different guesses on Rafinesque's etymology. The argument for
Pleurocer- has generally been accepted now.
--
Dr. David Campbell
425 Scientific Collections
University of Alabama
"I think of my happy condition, surrounded by acres of clams"
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