Etrema bicolor

Molluscs
IUCN: Not evaluated

Usual depth0 m
Water temperature14–23 °C
Best monthsFebruary, March, and October
How commonRare

All species

Photo credit: (c) Thomas Mesaglio, some rights reserved (CC BY) · CC BY · iNaturalist

Where and when

Where it has been recorded

Worldwide

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Best months

Worldwide (open data)

January: 8 records
February: 9 records
March: 9 records
April: 7 records
May: 9 records
June: 2 records
July: 1 records
August: 3 records
September: 7 records
October: 10 records
November: 7 records
December: 1 records

Depth and water temperature

Depth

Mostly recorded at 0 m · Deepest record: 0 m

0–10 m: 9 records

Water temperature

Recorded in surface water of 14–23 °C

12–14 °C: 3 records
14–16 °C: 29 records
16–18 °C: 6 records
18–20 °C: 17 records
20–22 °C: 57 records
22–24 °C: 8 records

Photos

Names and classification

Other scientific names: Clathurella bicolor

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.
Conservation status as published by GBIF (IUCN Red List).
336 open-data records from 1874 to 2016.
Species data updated November 2, 2026.

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