Hairy-fingered Rock Crab
Pachygrapsus planifrons
- Usual depth0–2 m
- Water temperature25–29 °C
- Best monthsMarch, May, and July
- How commonRare
Photo credit: (c) Slunky, some rights reserved (CC BY) · CC BY · iNaturalist
Where and when
Where it has been recorded
Worldwide
Loading the map
Best months
Worldwide (open data)
- January: 7 records
- February: 7 records
- March: 13 records
- April: 4 records
- May: 13 records
- June: 7 records
- July: 12 records
- August: 12 records
- September: 4 records
- October: 4 records
- November: 7 records
- December: 6 records
Depth and water temperature
Depth
Mostly recorded at 0–2 m · Deepest record: 2 m
Water temperature
Recorded in surface water of 25–29 °C
Photos
(c) Daniel Eisenhauer, some rights reserved (CC BY) · CC BY · iNaturalist 
no rights reserved · CC0 1.0 · iNaturalist 
(c) nmoorhatch, some rights reserved (CC BY) · CC BY · iNaturalist 
no rights reserved · CC0 1.0 · iNaturalist 
(c) Daniel Eisenhauer, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Gabriel, some rights reserved (CC BY) · CC BY · iNaturalist
Names and classification
- English
- Hairy-fingered Rock Crab
Names in 1 more languages
- French
- Crabe de rocher à doigts poilus
Other scientific names: Pachygrapsus laevis, Pachygrapsus longipes
Similar species
Striped shore crabPachygrapsus crassipes
Tiny Rock CrabPachygrapsus minutus
Pleated rock crabPachygrapsus plicatus
- Polynesian grapsid crab
Pachygrapsus fakaravensis
Cliff crabGrapsus grapsus
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).
- 122 open-data records from 1888 to 2012.
- Species data updated November 5, 2026.
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