Cyanocyclas brasiliana (Deshayes, 1855)

Taxonomy & Nomenclature

Synonyms (according to MolluscBase eds., 2025): Corbicula brasiliana Deshayes, 1855; Corbicula obsoleta Deshayes, 1855; Cyanocyclas obsoleta (Deshayes, 1855); Corbicula tenuistriata Prime, 1860; Corbicula amazonica Prime, 1870; Cyanocyclas amazonica (Prime, 1870)

See Graf & Cummings (2025) for a more complete taxonomic history.

Conservation Status

Last record: 1855 or before (Brito et al., 2015)

Rediscovered in: 2010 (Brito et al., 2015)

Distribution

Parnaíba River delta, Brazil (northeastern)

Biology & Ecology

Hypodigm

Media

References

Original scientific description:

Deshayes, G. P. (1853-1855). Catalogue of the Conchifera or bivalve shells in the collection of the British Museum. Part I. Cyprinidae, Veneridae and Glauconomidae. British Museum, London. ii + 216 pp. [introduction by J. E. Gray] [27 June 1853]; Part II, Petricoladae (concluded), Corbiculadae, pp. 217-292 [title page dated "1854"; 12 May 1855]

Other references:

Brito, Carla Susy Freire de et al. (2015). Cyanocyclas brasiliana (Bivalvia: Cyrenidae) rediscovered in the limnic part of Parnaíba River delta, Northeast Brazil. Check List 11(4): 1685 (5 pp.). https://doi.org/10.15560/11.4.1685

Clessin, S. (1879). Die Familie der Cycladeen. In: Küster, H. C., Systematisches Conchylien-Cabinet von Martini und Chemnitz 9(3): 161-282.

Deshayes, G. P. (1855). Descriptions of new shells from the collection of Hugh Cuming, Esq. Proceedings of the Zoological Society of London. (1854) 22: 317-371. [pp. 317-320, 8 May 1855; 321-371, 16 May 1855]

Graf, Daniel L. and Cummings, Kevin S. (2025). The Freshwater Mussels (Unionoida) of the World (and other less consequential bivalves). MUSSEL Project Web Site, https://www.mussel-project.net/. Accessed 1 July 2025.

Huber, M. (2015). Compendium of Bivalves 2. A Full-Color Guide to the Remaining Seven Families. A Systematic Listing of 8,500 Bivalve Species and 10,500 Synonyms. ConchBooks, Harxheim, Germany. 901 pp. + 1 CD-ROM.

Ituarte, C. (2020). Key to Bivalvia, Myida & Key to Bivalvia, Venerida, pp. 391-408. In: Damborenea, Cristina, Rogers, D. Christopher and Thorp, James (eds.). Thorp and Covich's Freshwater Invertebrates, Volume 5: Keys to Neotropical and Antarctic Fauna, Fourth Edition. Academic Press.

Johnson, R. I. (1959). The types of Corbiculidae and Sphaeriidae (Mollusca: Pelecypoda) in the Museum of Comparative Zoology, and a biobibliographic sketch of Temple Prime, an early specialist of the group. Bulletin of the Museum of Comparative Zoology 120(4): 431– 479.

Marshall, W. B. (1924). New Uruguayan mollusks of the genus Corbicula. Proceedings of the United States National Museum (2552): 1-12.

MolluscaBase eds. (2025). MolluscaBase. Cyanocyclas brasiliana (Deshayes, 1855). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=987335 on 2025-07-01

Pereira, D., Mansur, M. C. D., Duarte, L. D. S., de Oliveira, A. S., Pimpão, D. M. et al. (2014). Bivalve distribution in hydrographic regions in South America: historical overview and conservation. Hydrobiologia 735: 15-44. https://doi.org/10.1007/s10750-013-1639-x

Prime, T. (1860). Synonymy of the cyclades, a family of acephalous Mollusca. Part I. Proceedings of the Academy of Natural Sciences of Philadelphia 12: 267-301.

Prime, T. (1865). Monograph of American Corbiculadae (Recent and fossil). Washington: Smithsonian Miscellaneous Collections 145: xi + 80 pp. doi:10.5962/bhl.title.19022

Prime, T. (1870). Catalogue of the Recent species of the family Corbiculadæ. American Journal of Conchology 5: 127-187.

Simone, L. R. L. (2006). Land and freshwater molluscs of Brazil: an illustrated inventory on the Brazilian malacofauna, including neighbor regions of the South America, respect to the terrestrial and freshwater ecosystems. São Paulo: EGB, FAPESP. 390 pp.

https://extinctanimals.proboards.com/thread/19607/cyanocyclas-brasiliana

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