Estuarine Pillbox Crab

Where and when

Where it has been recorded

Worldwide

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Best months

Worldwide (open data)

January: 36 records
February: 19 records
March: 21 records
April: 13 records
May: 17 records
June: 8 records
July: 9 records
August: 11 records
September: 26 records
October: 50 records
November: 39 records
December: 32 records

Depth and water temperature

Depth

Mostly recorded at 0–2 m · Deepest record: 19 m

0–10 m: 70 records
10–20 m: 2 records

Water temperature

Recorded in surface water of 12–18 °C

10–12 °C: 6 records
12–14 °C: 11 records
14–16 °C: 13 records
16–18 °C: 37 records

Photos

(c) Kelvin Perrie, some rights reserved (CC BY), uploaded by Kelvin Perrie · CC BY · iNaturalist
(c) Kelvin Perrie, some rights reserved (CC BY), uploaded by Kelvin Perrie · CC BY · iNaturalist
(c) Kelvin Perrie, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Oscar Dove, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Rick Field, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Shaun Lee, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Leon Perrie, some rights reserved (CC BY) · CC BY · iNaturalist

Names and classification

English: Estuarine Pillbox Crab

Other scientific names: Elamene Whitei

Similar species

Three-pronged Spider Crab
Halicarcinus ovatus
Cook's Pillbox Crab
Halicarcinus cookii
Flattened Crab
Halicarcinus planatus
Flat Pillbox Crab
Halicarcinus quoyi
Variable pillbox crab
Halicarcinus varius
Tong's Pillbox Crab
Halicarcinus tongi

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).
160 open-data records from 1952 to 2021.
Species data updated November 3, 2026.