Organisms Diversity & Evolution

, 11:83

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

Authors

    • Departamento de Bioloxía Animal, Bioloxía Vexetal e Ecoloxía, Facultade de CienciasUniversidade da Coruña
  • Juan Moreira
    • Estación de Bioloxía Mariña da GrañaUniversidade de Santiago de Compostela
    • Departamento de Biología (Zoología)Universidad Autónoma de Madrid
  • Gudmundur V. Helgason
    • Institute of BiologyUniversity of Iceland
Original Article

DOI: 10.1007/s13127-011-0046-2

Cite this article as:
Parapar, J., Moreira, J. & Helgason, G.V. Org Divers Evol (2011) 11: 83. doi:10.1007/s13127-011-0046-2

Abstract

The diversity, taxonomy and distribution of the Opheliidae (Annelida: Polychaeta) in Icelandic waters is reviewed based on material collected during the BIOICE project. Nine opheliid species are recorded from Iceland; of these, three were previously reported in the area (Ophelia limacina, Ophelina cylindricaudata and O. acuminata), four are new for Icelandic waters (Ammotrypanella cf. arctica, Ophelina abranchiata, O. helgolandica and Tachytrypane jeffreisii), and two are new to science. Ophelina basicirra sp. nov. is distinguished by having a narrow anal tube with one short proximal anal cirrus in ventral position. Ophelina bowitzi sp. nov. is characterized by the small size of its anterior branchiae, which become larger in the middle and posterior body regions, and by an upwardly bent anal tube that is wide at the base and narrowing distally. The genera Euzonus, Armandia and Polyophthalmus are not represented in the BIOICE samples. The distribution of each species off Iceland is presented; one species is restricted to shallow waters of northwestern fjords, three species are found south of the GIF Ridge, and five species are circumicelandic. Several body characters with taxonomic relevance in some species are reviewed based on SEM images. Furthermore, as a first step towards a future revision of the genus Ophelina Örsted 1843 in North Atlantic waters, the status of each species originally described or subsequently reported from the area is commented on, and a key to the currently valid species is presented. Ophelina longicephala Hartmann-Schröder, 1977, formerly a subspecies of O. delapidans (Kinberg, 1866), is raised to species status.

Keywords

AnnelidaOphelinaGIF RidgeDeep seaBIOICE projectSEMTaxonomyNew species

Supplementary material

13127_2011_46_MOESM1_ESM.pdf (572 kb)
ESM 1(PDF 572 kb)

Copyright information

© Gesellschaft für Biologische Systematik 2011