Much like the knobbed whelk, the lightning whelk has knobs on the sides of the shell whorls. However, the whelk opens on the opposite side. My family unscientifically thinks that lightning whelks are found about 1% as frequently as knobbed whelks.


Much like the knobbed whelk, the lightning whelk has knobs on the sides of the shell whorls. However, the whelk opens on the opposite side. My family unscientifically thinks that lightning whelks are found about 1% as frequently as knobbed whelks.