APPROX. 3 TO 4 INCHES.
(NATURAL IMPERFECTIONS ARE POSSIBLE ON WHELK SHELLS).
5 TO 6 INCHES.
3.90 TO 4.70 INCHES..... (10 TO 12 CM).
APPROX. (12 TO 14 CM) 4.72 TO 5.52 INCHES....... (BUSYCON CONTRARIUM).
APPROX. 11 TO 12 INCHES....... (BUSYCON CONTRARIUM).
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