Kalpana Kalpana (Editor)

Sinistrofulgur perversum

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Kingdom
  
Family
  
Busyconidae

Scientific name
  
Busycon perversum

Phylum
  
Superfamily
  
Buccinoidea

Higher classification
  
Busycon

Rank
  
Species

Sinistrofulgur perversum httpssmediacacheak0pinimgcom564xba000d

Similar
  
Busycon, Knobbed whelk, Triplofusus giganteus, Busycotypus canaliculatus, Busycon contrarium

The lightning whelk, scientific name Sinistrofulgur perversum, is an edible species of very large predatory sea snail or whelk, a marine gastropod mollusc in the family Busyconidae, the busycon whelks. This species has a left-handed or sinistral shell. It eats mostly bivalves.

Contents

There has been some disagreement about the correct scientific name for this species, which has been confused with Sinistrofulgur sinistrum Hollister, 1958, and Busycon contrarium (Conrad, 1840), which is an exclusively fossil species.

Distribution

This marine species is native to southeastern North America, south to Florida and the Gulf states.

Habitat

Lightning whelks can be found in the sandy or muddy substrate of shallow embayments.

Life habits

This whelk species feeds primarily on marine bivalves, ingesting their soft parts using its proboscis.

Sinistrofulgur perversum and Busycon carica

This species shares many characteristics with another species, the knobbed whelk Busycon carica, but there are some important differences:

  • Lightning whelks are sinistral in coiling, whereas knobbed whelks are dextral
  • Lightning whelks have a lower spire than the knobbed whelk
  • The knobs of the lightning whelk are usually less well-developed than those of the knobbed whelk
  • Lightning whelks are diurnal, while knobbed whelks are active both day and night
  • Lightning whelks prefer to stay in deeper waters than the knobbed whelks when feeding on mud flats
  • Human use

    For thousands of years Native Americans used these animals as food, and used their shells for tools, ornaments, containers and to make jewelry, i.e. shell gorgets. They may have believed the sinistral nature of the lightning whelk shell made it a sacred object.

    The lightning whelk is the State Shell of Texas.

    References

    Sinistrofulgur perversum Wikipedia