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Clavus unizonalis

  • Molluscs
  • IUCN: Not evaluated
  • Usual depth1–18 m
  • Water temperature22–30 °C
  • Best monthsJanuary and December
  • How commonRare
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About this species

Clavus unizonalis, common name the one-zoned turrid, is a species of sea snail, a marine gastropod mollusk in the family Drilliidae.

Text from the Wikipedia article “Clavus unizonalis”, licensed CC BY-SA 4.0. Read the article

Where and when

Where it has been recorded

Worldwide

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Best months

Worldwide (open data)

  • January: 21 records
  • February: 8 records
  • March: 3 records
  • April: 2 records
  • May: 2 records
  • June: 6 records
  • July: 11 records
  • August: 11 records
  • September: 4 records
  • October: 6 records
  • November: 4 records
  • December: 14 records

Depth and water temperature

Depth

Mostly recorded at 1–18 m · Deepest record: 18 m

  • 0–10 m: 3 records
  • 10–20 m: 1 records

Water temperature

Recorded in surface water of 22–30 °C

  • 20–22 °C: 1 records
  • 22–24 °C: 0 records
  • 24–26 °C: 13 records
  • 26–28 °C: 53 records
  • 28–30 °C: 54 records

Names and classification

Names in 2 more languages
Japanese
ヒトスジツノクダマキ
Simplified Chinese
雙淇林捲管螺

Other scientific names: Clavus viduus, Drillia vidualoides, Pleurotoma (Clavus) nigrozonata, Pleurotoma nigrozonata, Pleurotoma unizonalis, Pleurotoma vidua

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Sources and credits

Names and taxonomy: WoRMS (CC BY 4.0) and the GBIF Backbone (CC BY 4.0). Photos: iNaturalist observers, each under the licence shown (CC0, CC BY or CC BY-SA).

  • Depth, temperature, months and maps: records from OBIS and GBIF under CC0 or CC BY.
  • Descriptions: Wikipedia, licensed CC BY-SA, each linked to its article.
  • Conservation status as published by GBIF (IUCN Red List).
  • 176 open-data records from 1904 to 2014.
  • Species data updated October 26, 2026.

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