Crab-eating frog
Fejervarya cancrivora (Gravenhorst, 1829)
LCLeast Concernfrogs and toads
The crab-eating frog (Fejervarya cancrivora) is a species in the family Dicroglossidae, order Anura. Its IUCN Red List status is Least Concern.

Quick facts about the crab-eating frog
- Weight
- Not recorded
- Length
- up to 11.3 cmsrc for Length
- Lifespan
- Not recorded
- Diet
- Invertivoresrc for Diet
- Main food
- arthropodssrc for Main food
- Habitat
- Not recorded
- Young per litter or clutch
- 638.5 – 1,187src for Young per litter or clutch
- Reproduction
- Eggssrc for Reproduction
- Conservation status
- Least Concern (IUCN)src for Conservation status
- Countries on record
- Not recorded
Where does the crab-eating frog live?
Not recorded
What is the crab-eating frog?
The crab-eating frog (Fejervarya cancrivora) is a frog native to south-eastern Asia including Taiwan, China, Sumatra in Indonesia, the Philippines and more rarely as far west as Orissa in India. It has also been introduced to Guam, most likely from Taiwan. It inhabits mangrove swamps and marshes and is one of 144 known modern amphibians which can tolerate brief excursions into seawater, and is possibly the only extant marine amphibian.
This frog can tolerate marine environments (immersion in sea water for brief periods or brackish water for extended periods) by increasing urea production and retention, and by remaining slightly hyperosmotic within urea and sodium flux. Adults can survive in salt water with salinity as high as 2.8%, and tadpoles can survive salinities as high as 3.9%.
From the Wikipedia article “Crab-eating frog” (en.wikipedia.org/w/index.php?title=Crab-eating_frog&oldid=1382293473), by Wikipedia contributors, licensed under CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0). This block is kept separate from our own text.
Is the crab-eating frog endangered?
The crab-eating frog is listed as Least Concern on the IUCN Red List: it is not currently at risk of extinction.
- LCLeast Concern
- NTNear Threatened
- VUVulnerable
- ENEndangered
- CRCritically Endangered
- EWExtinct in the Wild
- EXExtinct
Category via Wikidata (CC0). Find the full assessment on the IUCN Red List. See all Least Concern species. What the categories mean.
How is the crab-eating frog classified?
- kingdomAnimalia
- phylumChordata
- classAmphibia
- orderAnura
- familyDicroglossidae
- genusFejervarya
- SpeciesFejervarya cancrivora (Gravenhorst, 1829)
Synonyms Dicroglossus cancrivorus, Euphlyctis cancrivora, Fejervarya raja, Limnonectes cancrivorus, Limnonectes raja, Rana cancrivora, Rana cancrivora cancrivora, Rana cancrivora raja, Rana raja, Rana tigerina angustopalmata, Rana tigrina angustopalmata, Rana tigrina cancrivora
Other names and names in other languages (20)
- Asian brackish frogEnglish
- Asian brackish frogEnglish
- Java wart frogEnglish
- Mangrove frogEnglish
- Mangrove frogEnglish
- Rice field frogEnglish
- Rice field frogEnglish
- skokan krabožravýCzech
- Java-KrabbenfroschGerman
- Rana Cangrejera de SondaSpanish
- Kodok SawahIndonesian
- Rana cancrivoraItalian
- Rana mangia granchiItalian
- カニクイガエルJapanese
- 게잡이개구리Korean
- Крабоядная лягушкаRussian
- กบน้ำเค็มThai
- Palakang TubiganFilipino
- 海蛙Chinese
- 海陆蛙Chinese
Catalogue of LifeWikipediaiNaturalistWikidataWoRMSIUCN Red List
Relatives of the crab-eating frog
Other species in the same genus Fejervarya.

Field frog
Fejervarya limnocharis
Mangrove frog
Fejervarya moodiei
Luzon wart frog
Fejervarya vittigera
Chianjur wart frog
Fejervarya iskandari
Lantau wart frog
Fejervarya multistriata
Penang wart frog
Fejervarya pulla
CompareCrab-eating frog vs Field frogCrab-eating frog vs Mangrove frogCrab-eating frog vs Luzon wart frogCrab-eating frog vs Chianjur wart frog
Common questions
Answered only where our data holds the answer.
Is the crab-eating frog endangered?
The crab-eating frog is listed as Least Concern on the IUCN Red List, meaning it is not currently at risk of extinction.
What does the crab-eating frog eat?
Its recorded main food is arthropods.
What kind of animal is the crab-eating frog?
The crab-eating frog (Fejervarya cancrivora) belongs to the family Dicroglossidae in the order Anura.
Sources and how to cite this page
Data as of 2026-11-11. How this page is put together.
- AmphiBIO, a global database for amphibian ecological traits · CC BY 4.0 · v1
Oliveira, B.F., São-Pedro, V.A., Santos-Barrera, G., Penone, C. & Costa, G.C. (2017) AmphiBIO, a global database for amphibian ecological traits. Scientific Data 4: 170123. https://doi.org/10.1038/sdata.2017.123. Data: https://doi.org/10.6084/m9.figshare.4644424.v5 - Catalogue of Life eXtended Release · CC BY 4.0 · 2026-10-16 XR
Catalogue of Life (2026). Catalogue of Life eXtended Release, version 2026-10-16 XR. Catalogue of Life Foundation, Amsterdam, Netherlands. https://doi.org/10.48580/dgzlf - Wikimedia Commons · per file (CC0 / public domain / CC BY green, CC BY-SA amber, anything else not displayed) · 2026-11-11
Wikimedia Commons contributors. Wikimedia Commons. https://commons.wikimedia.org (each file credited to its author under its own licence). - Wikidata · CC0 1.0 · 2026-11-11
Wikidata contributors. Wikidata. https://www.wikidata.org (data retrieved via the Wikidata Query Service). - Wikipedia (English) · CC BY-SA 4.0 · 2026-11-11
Wikipedia contributors. Wikipedia, The Free Encyclopedia. https://en.wikipedia.org (text under CC BY-SA 4.0; each block names its article and revision).
Embed a card for this animal on your own site
Copy this code. The card shows the photo with its credit, key facts and a link back to this page.
CreatureData. (2026). Crab-eating frog (Fejervarya cancrivora). Retrieved from https://creaturedata.com/animals/crab-eating-frog
“Crab-eating frog (Fejervarya cancrivora).” CreatureData, 2026, https://creaturedata.com/animals/crab-eating-frog.
@misc{crab_eating_frog_2026,
title = {Crab-eating frog (Fejervarya cancrivora)},
author = {{CreatureData}},
year = {2026},
url = {https://creaturedata.com/animals/crab-eating-frog},
note = {Data as of 2026-11-11}
}