Eoacmaea calamus

Molluscs
IUCN: Not evaluated

Usual depth0 m
Water temperature14–26 °C
Best monthsJanuary, March, and September
How commonRare

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

About this species

Eoacmaea calamus is a species of sea snail, a true limpet, a marine gastropod mollusk in the family Eoacmaeidae, one of the families of true limpets.

Text from the Wikipedia article “Eoacmaea calamus”, 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: 35 records
February: 21 records
March: 26 records
April: 25 records
May: 13 records
June: 16 records
July: 13 records
August: 11 records
September: 28 records
October: 12 records
November: 19 records
December: 23 records

Depth and water temperature

Depth

Mostly recorded at 0 m · Deepest record: 38 m

0–10 m: 101 records
10–20 m: 5 records
20–30 m: 1 records
30–40 m: 3 records

Water temperature

Recorded in surface water of 14–26 °C

12–14 °C: 56 records
14–16 °C: 162 records
16–18 °C: 21 records
18–20 °C: 6 records
20–22 °C: 4 records
22–24 °C: 0 records
24–26 °C: 0 records
26–28 °C: 1 records

Photos

Names and classification

Other scientific names: Acmaea calamus, Patella calamus

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).
369 open-data records from 1909 to 2016.
Species data updated November 2, 2026.

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