Euchoneira Licciano, Giangrande & Gambi, 2009, gen. nov. ...

• Main Authors: Licciano, Margherita, Giangrande, Adriana, Gambi, Maria Cristina
• Format: Text
• Language: unknown
• Published: Zenodo 2009
• Subjects: Biodiversity; Taxonomy; Animalia; Annelida; Polychaeta; Sabellida; Sabellidae; Euchoneira; Adriana; Fang; Livingston Island; Antarc*; Antarctica
• Online Access: https://dx.doi.org/10.5281/zenodo.6213862; https://zenodo.org/doi/10.5281/zenodo.6213862

Euchoneira gen. nov. Material examined. 187 specimens (86Ƥ, 973) all collected in St. DR1 (77 m depth) off Livingston Island (6th January 2006). Diagnosis. Large species with eight thoracic chaetigers, and large number of abdominal ones. Radiolar skeleton with two rows of cells; palmate membrane and flanges present. Radiolar eyes absent. Branchial lobe fused mid dorsally. Dorsal pinnular appendages present. Dorsal lips without dorsal radiolar appendages. Ventral radiolar appendages present. Peristomial collar separated mid-dorsally by distinct gap, dorsal margins entire. Thoracic notopodial uncini acicular, main fang surmounted by several rows of small teeth, breast as narrow swelling, handles elongate. Companion chaetae absent. Thoracic notopodial fascicles in chaetigers 1 as row of narrowly hooded chaetae; notopodial fascicles in chaetigers 2–8 with superior group of narrowly hooded chaetae and two inferior rows of broadly hooded chaetae and bayonet type. Abdominal neuropodial fascicles with 1–2 transverse ... : Published as part of Licciano, Margherita, Giangrande, Adriana & Gambi, Maria Cristina, 2009, A new genus of Sabellidae (Annelida, Polychaeta) from Antarctica, with discussion of relationships among plesiomorphic genera within Sabellinae, pp. 28-42 in Zootaxa 2226 on pages 32-33, DOI: 10.5281/zenodo.190215 ...