In a message dated 7/11/2007 2:06:34 P.M. Pacific Daylight Time,
[log in to unmask] writes:
(none of which is usually "corrugated")
Now I must differ with you there. If you look at a sheet of corrugated
steel, you will see a ripple effect of high and low points along the sheet of
metal. This is the same effect when you look at the edge of a Pecten ssp. (many
different shells by the same genus) marine bivalve. If you look directly down
on the sheet or shell, you see high ridges and troughs. The Pecten is the
physical definition of scallop.
Ron May
Legacy 106, Inc.
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