Knobbed whelk facts for kids
Quick facts for kidsKnobbed whelk
The knobbed whelk is the second largest species of busycon whelk, ranging in size up to 12 in (305 mm).
The shell of most knobbed whelks is dextral, meaning that it is right-handed. If the shell is held in front of the viewer, with the spiral end up and the opening facing the viewer, the opening will be on the animal's right side.
The shell is thick and strong and has six clockwise coils. The color is ivory or pale gray, and the large aperture (the inside of the opening) is orange. The canal inside is wide and the entrance can be closed.
The knobbed whelk lives below the low tide mark and is migratory, alternating between deep and shallow water, depending on the time of year.
During the weather extremes of the summer and winter months, these sea snails live in deep water, at depths of up to 48m. In the milder weather of the spring and fall they live in shallow water, on near-shore or intertidal mud flats and sand flats.
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Knobbed whelk Facts for Kids. Kiddle Encyclopedia.