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Common Southern Bean Cowry

Ellatrivia merces

  • Molluscs
  • IUCN: Not evaluated
  • Usual depth0–128 m
  • Water temperature14–27 °C
  • Best monthsJanuary, March, and November
  • How commonOccasional
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Photo credit: (c) Lisa Bennett, some rights reserved (CC BY) · CC BY · iNaturalist

About this species

Ellatrivia merces is a species of small sea snail, a marine gastropod mollusc in the family Triviidae, the trivias.

Text from the Wikipedia article “Ellatrivia merces”, 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: 54 records
  • February: 33 records
  • March: 51 records
  • April: 46 records
  • May: 30 records
  • June: 20 records
  • July: 28 records
  • August: 20 records
  • September: 27 records
  • October: 26 records
  • November: 48 records
  • December: 25 records

Depth and water temperature

Depth

Mostly recorded at 0–128 m · Deepest record: 220 m

  • 0–10 m: 23 records
  • 10–20 m: 1 records
  • 20–30 m: 1 records
  • 30–40 m: 0 records
  • 40–50 m: 0 records
  • 50–60 m: 0 records
  • 60–70 m: 0 records
  • 70–80 m: 0 records
  • 80–90 m: 0 records
  • 90–100 m: 1 records
  • 100–110 m: 0 records
  • 110+ m: 4 records

Water temperature

Recorded in surface water of 14–27 °C

  • 12–14 °C: 12 records
  • 14–16 °C: 164 records
  • 16–18 °C: 42 records
  • 18–20 °C: 72 records
  • 20–22 °C: 96 records
  • 22–24 °C: 14 records
  • 24–26 °C: 5 records
  • 26–28 °C: 3 records

Names and classification

English
Common Southern Bean Cowry

Other scientific names: Cypraea australis, Diaphanna nivea, Ellatrivia memorata, Trivia merces, Triviella maoriensis, Triviella memorata, Triviella merces

Similar species

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).
  • 827 open-data records from 1857 to 2013.
  • Species data updated November 2, 2026.

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