Calvactaea

Calvactaea
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Malacostraca
Order:	Decapoda
Suborder:	Pleocyemata
Infraorder:	Brachyura
Family:	Xanthidae
Genus:	Calvactaea ; Ward, 1933
Species:	C. tumida
Binomial name
	Calvactaea tumida; Ward, 1933

Last updated October 11, 2025

Calvactaea tumida is a species of crabs in the family Xanthidae, the only species in the genus Calvactaea.^[1]^[2]

Found primarily off the coast of New South Wales, Australia, as well as, Sri Lanka, China, Taiwan, and Japan.^[3]

References

↑ Ng, Peter K. L.; Guinot, Danièle; Davie, Peter J. F. (January 2008). "Systema Brachyurorum: Part I. An annotated checklist of extant Brachyuran crabs of the world" (PDF). Raffles Bulletin of Zoology . 17: 1–286. Archived (PDF) from the original on 6 June 2011. Retrieved 8 June 2011– via the National University of Singapore.
↑ Ahyong, Shane T. (2024). "Calvactaea Ward, 1933". WoRMS. World Register of Marine Species . Retrieved 29 September 2024.
↑ Marine Species Identification List

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[Ng-1] Ng, Peter K. L.; Guinot, Danièle; Davie, Peter J. F. (January 2008). "Systema Brachyurorum: Part I. An annotated checklist of extant Brachyuran crabs of the world" (PDF). Raffles Bulletin of Zoology . 17: 1–286. Archived (PDF) from the original on 6 June 2011. Retrieved 8 June 2011– via the National University of Singapore.

[WoRMS-2] Ahyong, Shane T. (2024). "Calvactaea Ward, 1933". WoRMS. World Register of Marine Species . Retrieved 29 September 2024.

[3] Marine Species Identification List

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