Higher Classification: > Kingdom Animalia > Subkingdom Eumetazoa > Phylum Annelida > Class Polychaeta > Subclass Errantia > Order Phyllodocida > Suborder Phyllodocida incertae sedis > Family Sphaerodoridae > Genus Sphaerodorum

Sphaerodorum gracilis (Rathke, 1843)

Rank: Species
Taxon Status: accepted

Relationships towards this taxon

Genus group names

*Sphaerodorum*	Örsted, 1843	accepted genus name
*Ephesia*	Rathke, 1843	junior homonym

Species group names

*Nereis bullata*	Dalyell, 1853	subjective synonym
*Ephesia gracilis*	Rathke, 1843	synonym

Vernaculars (+) (-)

Japanese: フタコブゴカイ

Literature

additional source	Integrated Taxonomic Information System (ITIS).
additional source	Fauchald, Kristian. (1974). Sphaerodoridae (Polychaeta: Errantia) from world-wide areas. Journal of Natural History. 8(3): 257-289.
additional source	Fauchald, K. (1977). The polychaete worms, definitions and keys to the orders, families and genera. Natural History Museum of Los Angeles County: Los Angeles, CA (USA), Science Series. 28:1-188.
additional source	Brunel, P., L. Bosse & G. Lamarche. (1998). Catalogue of the marine invertebrates of the estuary and Gulf of St. Lawrence. Canadian Special Publication of Fisheries and Aquatic Sciences, 126. 405 pp.
additional source	Hartman, Olga. (1959). Catalogue of the Polychaetous Annelids of the World. Parts 1 and 2. Allan Hancock Foundation Occasional Paper. 23: 1-628.
additional source	Johnston, G. (1865). A catalogue of the British non-parasitical worms in the collection of the British Museum. [book]. 1-365. British Museum. London. [See also separate entry for Baird supplement].
additional source	Bellan, G. (2001). Polychaeta, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels. 50: 214-231.
source of synonymy	Pettibone, Marian H. (1963). Marine polychaete worms of the New England region. I. Aphroditidae through Trochochaetidae. Bulletin of the United States National Museum. 227(1): 1-356.

Genbank

Citation

Read, G.; Fauchald, K. (Ed.) (2025). World Polychaeta Database. Sphaerodorum gracilis (Rathke, 1843). Accessed through: World Register of Marine Species at: https://marinespecies.org/aphia.php?p=taxdetails&id=131100