
Ilyoplax formosensis
- Water temperature26°C
- Best monthsFebruary, April, and May
- How commonRare
Photo credit: (c) 高山田鼠, 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: 1 records
- February: 12 records
- March: 4 records
- April: 15 records
- May: 15 records
- June: 4 records
- July: 8 records
- August: 5 records
- September: 4 records
- October: 11 records
- November: 2 records
- December: 8 records
Depth and water temperature
Water temperature
Recorded in surface water of 26°C
Photos

(c) 高山田鼠, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Tim, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Tim, some rights reserved (CC BY) · CC BY · iNaturalist
Names and classification
Names in 2 more languages
- Japanese
- タイワンチゴガニ
- Simplified Chinese
- 臺灣泥蟹
Similar species
White semaphore crabIlyoplax delsmani


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).
- 58 open-data records from 1995 to 2007.
- Species data updated November 3, 2026.
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