Ophelina cylindricaudata ( Hansen, 1878)

Helgason, Julio Parapar Juan Moreira Gudmundur V., 2011, Distribution and diversity of the Opheliidae (Annelida, Polychaeta) on the continental shelf and slope of Iceland, with a review of the genus Ophelina in northeast Atlantic waters and description of two new species, Organisms Diversity & Evolution (New York, N. Y.) 11 (2), pp. 83-105 : 92-93

Ophelina cylindricaudata ( Hansen, 1878)

Ammotrypane cylindricaudatus Hansen — Hansen (1878: 8); McIntosh (1908: 385); Eliason (1951: 135); Pillai (1961: 27); Hartman and Fauchald (1971: 132).

Ophelina cylindricaudata (Hansen) — Støp-Bowitz (1945: 49); Støp-Bowitz (1948: 18); Day (1973: 96); Salazar-Vallejo and Londoño-Mesa (2004: 40); Maciolek and Blake (2006: 105); Parapar and Moreira (2008: 126).

Material examined BIOICE material: 4638 specimens (38.94% of Opheliidae ) in 289 samples (see Electronic Supplementary Material).

Comparative material: 39 specimens ( MNCN 16.01 /

11351), DIVA-Artabria 2002, sample EBS-400.

Occurrence This species was found at wide respective ranges of depth (68–2400 m) and temperature (−0.86–7.92°C) along the coast of Iceland.

Previously reported distribution Ophelina cylindricaudata was described from the coast of Norway and has been reported mostly from Northern-Hemisphere parts of the Atlantic and Pacific oceans and from the Arctic and Antarctic seas (e.g. Hartmann-Schröder 1996; Parapar and Moreira 2008; Salazar-Vallejo and Londoño-Mesa 2004; Uebelacker 1984). Maciolek and Blake (2006), following Hartmann-Schröder and Rosenfeldt (1989), expressed doubts as to whether the Antarctic specimens correspond to this species. Ophelina cylindricaudata was previously recorded in Icelandic waters by Wesenberg-Lund (1951).

Remarks Uebelacker (1984) reported the presence of branchiae in the middle third of the body in material from the Gulf of Mexico; recently, Parapar and Moreira (2008) found the same character in specimens from the Iberian Peninsula. This could indicate the existence of closely related species with overlapping distribution areas.