Leptoecia midatlantica Budaeva, 2012, new species

• Main Author: Budaeva, Nataliya
• Format: Other/Unknown Material
• Language: unknown
• Published: 2012
• Subjects: Biodiversity; Taxonomy; Animalia; Annelida; Polychaeta; Eunicida; Onuphidae; Leptoecia; Leptoecia midatlantica; Mid-Atlantic Ridge; North Atlantic
• Online Access: https://zenodo.org/record/5695879; https://doi.org/10.5281/zenodo.5695879

Leptoecia midatlantica, new species Figs. 1–7, Tab. 3 Type material. NHMUK 2011.351 St. JC037/ 70, 4 % formalin transferred to 70 % ethanol (holotype); NHMUK 2011.352 – 361 St. JC037/ 70, 4 % formalin transferred to 70 % ethanol (11 paratypes); NHMUK 2011.362 St. JC037/ 70, 96 % ethanol (1 paratype); NHMUK 2011.363 – 370 St. JC037/ 61, 4 % formalin transferred to 70 % ethanol (8 paratypes); NHMUK 2011.371, St. JC037/ 61, 96 % ethanol (1 paratype); ZMBN 87901 St. JC037/ 61, 4 % formalin transferred to 70 % ethanol (2 paratypes); ZMBN 87902 St. JC037/ 61, 96 % ethanol (1 paratype); ZMBN 87903 St. JC037/ 70, 4 % formalin transferred to 70 % ethanol (5 paratypes); ZMBN 87904 St. JC037/ 70, 96 % ethanol (1 paratype). Non type material examined. ZMBN, RV G. O Sars, St. 368, 4 % formalin transferred to 70 % ethanol (1); NOCS, RRS James Cook: St. JC011/ 101, 4 % formalin transferred to 70 % ethanol (5); St. JC011/ 111, 4 % formalin transferred to 70 % ethanol (2); St. JC037/ 19, 96 % ethanol (5); St. JC037/ 61, 4 % formalin transferred to 70 % ethanol (73); St. JC037/ 61, 96 % ethanol (12); St. JC037/ 67, 4 % formalin transferred to 70 % ethanol (6); St. JC037/ 67, 96 % ethanol (2); St. JC037/ 70, 4 % formalin transferred to 70 % ethanol (61); St. JC037/ 70, 96 % ethanol (14); St. JC037/ 79, 4 % formalin transferred to 70 % ethanol (1); SIO, RRS James Cook: St. JC037/ 61, 96 % ethanol (10); St. JC037/ 70, 96 % ethanol (20). Type locality. North Atlantic, Mid-Atlantic Ridge, Charlie-Gibbs Fracture Zone, 54 º 13 'N, 36 º04'W – 54 º10.5'N, 36 º05'W, 2604–2615 m. Diagnosis. Both uni- and bidentate simple falcigers exclusively on the first pair of parapodia, rarely only bidentate falcigers present; falcigers straight, without subdistal reduction in diameter; subacicular hooks from chaetiger 28–39; dorsal cirri on all chaetigers; digitiform postchaetal lobes till chaetiger 8–16; peristomium half as long as first chaetiger; tubes always dorsoventrally flattened with longitudinal ribs along both sides Description. Holotype, a ...