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Photo of a Lightning Whelk

Species profile

Lightning Whelk

Sinistrofulgur sinistrum

Marine snails (whelk/conch)4.6K iNat observations

At a glance

Lightning Whelk (Sinistrofulgur sinistrum) is a marine snail with specific harvest rules tracked in 1 of 66 jurisdictions covered by CatchRules.

Confirmed by 3,811 research-grade iNaturalist observations, with Florida, North Carolina, and South Carolina the top jurisdictions by observation count.

Notable details

  • Its shell coils to the left — the opposite direction of nearly all other snails.
  • Can grow up to 16 inches long, one of the largest gastropods on the U.S. East Coast.
  • The lightning whelk is the official state shell of Texas.
  • Feeds on hard-shelled bivalves like clams and oysters by prying them open with its shell.
  • Native Americans used whelk shells as tools, cups, and ceremonial objects for thousands of years.

Background

Sinistrofulgur sinistrum is an edible species of large predatory sea snail or whelk, a marine gastropod mollusc in the family Busyconidae, the busycon whelks.

Background excerpt adapted from Wikipedia's Lightning Whelk article (CC BY-SA). Visit Wikipedia for the full entry.

Photo credit: iNaturalist / Wikipedia. Identification reference only — verify regulations with the issuing wildlife agency before retaining a catch.