Asteroid fauna of the northern Mid-Atlantic Ridge with description of a new species Hymenasterides mironovi sp. nov
In: Marine Biology Research. Taylor & Francis: Oslo; Basingstoke. ISSN 1745-1000; e-ISSN 1745-1019, more
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| Keywords |
Taxa > Species > New taxa > New species
Asteroidea [WoRMS]
Marine/Coastal |
| Author keywords |
Asteroidea; Hymenasterides; MAR-ECO; Mid-Atlantic Ridge; North Atlantic |
| Abstract |
Asteroids collected on the north part of the Mid-Atlantic Ridge by the RV G.O. Sars in summer 2004, under the MAR-ECO programme, were studied. Asteroids were found at 17 stations, at depths ranging from 966 to 3509 m. The collection includes 32 species. One species of Hymenasterides is here described as new to science. This is the first record of the genus Hymenasterides Fisher, 1911a in the Atlantic Ocean. Previously the genus Hymenasterides included only one species, Hymenasterides zenognathus Fisher, 1911a, from the West Pacific. The new species differs from it by a larger number of paxillar spines (9-20 instead of five to seven) and by alternate adambulacral plates with one and two spines instead of one and three. An annotated check-list is given of the asteroids in the MAR-ECO collection. |
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