Origin of whorl
Examples from the Web for whorl
The two other pair of latera, together with the rostrum and sub-carina, form a whorl.A Monograph on the Sub-class Cirripedia (Volume 1 of 2)|Charles Darwin
When there is doubt concerning the tracing of a whorl, it should be treated in the same fashion.
It cannot be considered a whorl, however, as the recurve on the left is spoiled by an appendage (figs. 58 and 59).
The approximate ridge tracing for the whorl in figure 372 would be Meeting.
Some whorls may be found which contain ridges conforming to more than one of the whorl subdivisions described.