WoRMS source details
Capa, María; Osborn, Karen J.; Bakken, Torkild. (2016). Sphaerodoridae (Annelida) of the deep Northwestern Atlantic, including remarkable new species of Euritmia and Sphaerephesia. ZooKeys. 615: 1-32.
240194
10.3897/zookeys.615.9530 [view]
urn:lsid:zoobank.org:pub:3C47DE97-A10E-4688-A92A-29F7F6155B72 [view]
Capa, María; Osborn, Karen J.; Bakken, Torkild
2016
Sphaerodoridae (Annelida) of the deep Northwestern Atlantic, including remarkable new species of <em>Euritmia</em> and <em>Sphaerephesia</em>
ZooKeys
615: 1-32
Publication
World Polychaeta Database (WPolyDb)
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Sphaerodoridae (Annelida) is a seeming uncommon and minimally diverse group of polychaetes in the northwestern Atlantic, with only seven species reported from the United States, and none from the eastern coast of Canada, before the present study. Review of the large Smithsonian collection (National Museum of Natural History, Washington) revealed the presence of two morphologically extraordinary undescribed species and added a new record to the north-western Atlantic region. Euritmia carolensis sp. n. is characterised by bearing approximately 20 sessile spherical papillae arranged in three transverse rows per segment, ventrum with 4–6 larger papillae near the parapodial bases and parapodia without papillae; bearing 4–5 simple chaetae that are enlarged subdistally. Sphaerephesia amphorata sp. n. is distinguished from other congeners in the presence of four longitudinal rows of sessile, bottle-shaped macrotubercles with exceptionally long digitiform terminal papilla, and parapodia with four rounded and small papillae, bearing 4–7 compound chaetae, with blades 7–11 times as long as wide. Other encountered species are also herein re-described, including intraspecific variation and updated iconography. Comparison of material also allowed some systematic changes in the group, including the synonymisation of the genus Amacrodorum with Euritmia, and the transfer of Ephesiopsis shivae to Ephesiella. A key to the species reported from the Northwestern Atlantic is provided.
North-western Atlantic
Atlantic, North West (= warm + cold temporate (boreal))
Systematics, Taxonomy
Systematics, Taxonomy
Date
action
by
Amacrodorum Kudenov, 1987 accepted as Euritmia Sarda-Borroy, 1987 (source of synonymy)
Amacrodorum bipapillatum Kudenov, 1987 accepted as Euritmia bipapillatum (Kudenov, 1987) (new combination reference)
Ephesiella shivae (Rizzo, 2009) (new combination reference)
Ephesiopsis guayanae Hartman & Fauchald, 1971 (redescription)
Ephesiopsis shivae Rizzo, 2009 accepted as Ephesiella shivae (Rizzo, 2009) (source of synonymy)
Euritmia carolensis Capa, Osborn & Bakken, 2016 (original description)
Sphaerephesia amphorata Capa, Osborn & Bakken, 2016 (original description)
Sphaerodoridium minutum (Webster & Benedict, 1887) (redescription)
Sphaerodoropsis corrugata Hartman & Fauchald, 1971 (redescription)
Amacrodorum bipapillatum Kudenov, 1987 accepted as Euritmia bipapillatum (Kudenov, 1987) (new combination reference)
Ephesiella shivae (Rizzo, 2009) (new combination reference)
Ephesiopsis guayanae Hartman & Fauchald, 1971 (redescription)
Ephesiopsis shivae Rizzo, 2009 accepted as Ephesiella shivae (Rizzo, 2009) (source of synonymy)
Euritmia carolensis Capa, Osborn & Bakken, 2016 (original description)
Sphaerephesia amphorata Capa, Osborn & Bakken, 2016 (original description)
Sphaerodoridium minutum (Webster & Benedict, 1887) (redescription)
Sphaerodoropsis corrugata Hartman & Fauchald, 1971 (redescription)
Holotype LACM LACM-AHF POLY 950, geounit Long Island Continental Shelf, identified as Sphaerodoropsis corrugata Hartman & Fauchald, 1971
Holotype USNM 1001792, geounit South Carolina, identified as Euritmia carolensis Capa, Osborn & Bakken, 2016
Holotype USNM 1001792, geounit South Carolina, identified as Euritmia carolensis Capa, Osborn & Bakken, 2016
Etymology
Authors: carolensis "refers to the type locality North Carolina". This is a lapsus for South Carolina as stated ... [details]
Etymology
Authors: "Amphora, is a Greek word that refers to the pottery vases used since the Bronze Age by the Greco-Romans ... [details]
Taxonomy
Capa et al (2016) do not actually use the new combination name, Ephesiella shivae. However, "transfer of ... [details]
Type locality
Off Charleston Bump, South Carolina, United States, northwestern Atlantic, 32.3944 N, 77.0181 W, 799 m [details]
Type locality
Offshore from Long Island, New York, west of Atlantis Canyon, New England continental slope, North Atlantic, ... [details]
