Parapar, JulioAguirrezabalaga, FlorencioMoreira Da Rocha, Juan2016-12-232016-12-232014Julio Parapar, Florencio Aguirrezabalaga & Juan Moreira (2014) First record of Longosomatidae (Annelida: Polychaeta) from Iceland with a worldwide review of diagnostic characters of the family, Journal of Natural History, 48:17-18, 983-998, DOI: 10.1080/00222933.2013.8593161464-5262http://hdl.handle.net/2183/17840The family Longosomatidae Hartman, 1944 (Annelida: Polychaeta) is newly reported for Icelandic waters. The diversity, taxonomy and ecology of this poorly-known monogeneric family are reviewed based on material collected during the BIOICE project. Two species of the genus Heterospio are recorded and redescribed: Heterospio longissima Ehlers, 1874 sensu Hartman (1965) and Heterospio reducta Laubier, Picard and Ramos, 1972-73. Several body structures of high taxonomic relevance in the genus are reviewed and discussed.engThis is an Accepted Manuscript of an article published by Taylor & Francis in Journal of Natural History on 2014, available online: http://www.tandfonline.com/10.1080/00222933.2013.859316PolychaetaLongosomatidaeHeterospioIcelandBIOICETaxonomyjournal articleopen access