Acrocnida brachiata Montagu, 1804 – synonym of Amphiura brachiata
Alecto petasus Düben and Koren, 1846 – synonym of Antedon petasus
Alecto sarsii Düben and Koren, 1846 – synonym of Hathrometra sarsii
Amphidetus (Amphidotus) chordatus Pennant, 1777 – synonym of Echinocardium cordatum
Amphidetus kürtzii Girard, 1852 – synonym of Echinocardium cordatum
Amphidetus roseus Forbes, 1841 – synonym of Echinocardium flavescens
Amphiocnida brachiata (Montagu) – synonym of Amphiura brachiata
Amphipholis tenera Lütken , 18?? – synonym of Amphipholis squamata
Amphiura elegans (Leach, 1815) – synonym of Amphipholis squamata
Amphiura lineata Ljungman, 1872 – synonym of Amphipholis squamata
Amphiura neapolitana M. Sars, 1857 – synonym of Amphiura brachiata
Amphiura neglecta Johnston, ???? – synonym of Amphipholis squamata
Anseriscus palmipes J. Müller & Troschel, 1842 – synonym of Anseropoda placenta
Antedon bifida Clark & Clark, 1967 – synonym of Antedon bifida
Antedon gorgonia de Freminville, 1811 – synonym of Antedon bifida
Antedon maroccana A.H. Clark, 1910 – synonym of Antedon bifida
Antedon milleri Thomson, ?1872 – synonym of Antedon bifida
Antedon petasus Clark & Clark, 1967 – synonym of Antedon petasus
Asteracanthion africanus J. Müller & Troschel, 1842 – synonym of Marthasterias glacialis
Asteracanthion mülleri M. Sars, 1846 – synonym of Leptasterias muelleri
Asteracanthion roseus O.F. Müller, 1776 – synonym of Stichastrella rosea
Asteracanthion rubens J. Müller & Troschel, 1842 – synonym of Asterias rubens
Asterias glacialis Linneaus, 1758 – synonym of Marthasterias glacialis
Asterias aculeata Linnaeus, 1758 – synonym of Ophiopholis aculeata
Asterias affinis Brandt, 1835 – synonym of Crossaster papposus
Asterias alboverrucosa Brandt, 1835 – synonym of Solaster endeca
Asterias angulosa O.F. Müller, 1788 – synonym of Marthasterias glacialis
Asterias aspera O.F. Müller, 1776 – synonym of Solaster endeca
Asterias bifida Pennant, 1777 – synonym of Antedon bifida
Asterias brachiata Montagu, 1804 – synonym of Amphiura brachiata
Asterias cartilaginea Fleming, 1828 – synonym of Anseropoda placenta
Asterias clathrata Pennant, 1777 – synonym of Asterias rubens
Asterias cuvieri Delle Chiaje, 1828 – synonym of Ophiothrix fragilis
Asterias echinata Delle Chiaje, 18?? – synonym of Ophiothrix fragilis
Asterias echinophora Delle Chiaje, 1827 – synonym of Marthasterias glacialis
Asterias endeca Linnaeus, 1767 – synonym of Solaster endeca
Asterias equestris de Lamarck, 1816, non Retzius, 1805 – synonym of Hippasteria phrygiana
Asterias filiformis O.F. Müller, 1776 – synonym of Amphiura filiformis
Asterias fragilis Abildgaard, in O.F. Müller, 1789 – synonym of Ophiothrix fragilis
Asterias helianthemoides Pennant, 1777 – synonym of Crossaster papposus
Asterias hispida Pennant, 1777 – synonym of Leptasterias muelleri
Asterias holsatica Retzius, 1805 – synonym of Asterias rubens
Asterias imperati Delle Chiaje, 1841 – synonym of Luidia ciliaris
Asterias irregularis Pennant, 1777 – synonym of Astropecten irregularis
Asterias madeirensis Stimpson, 1862 – synonym of Marthasterias glacialis
Asterias membranacea Retzius, 1783 – synonym of Anseropoda placenta
Asterias minuta Linnaeus, 1758 – synonym of Asterias rubens
Asterias murrayi Bell, 1889 – synonym of Asterias rubens
Asterias ophiura Linnaeus, 1758 – synonym of Ophiura ophiura
Asterias papposa Linnaeus, 1767 – synonym of Crossaster papposus
Asterias pentaphylla Pennant, 1777 – synonym of Ophiothrix fragilis
Asterias phrygianus Parelius, 1768 – synonym of Hippasteria phrygiana
Asterias placenta Pennant, 1777 – synonym of Anseropoda placenta
Asterias rarispina Perrier, 1875 – synonym of Marthasterias glacialis
Asterias roseus O.F. Müller, 1776 – synonym of Stichastrella rosea
Asterias rubens Linnaeus, 1758 – synonym of Asterias rubens
Asterias rubens violacea O.F. Müller, 1776 – synonym of Asterias rubens
Asterias rumphii Parelius, 1768 – synonym of Solaster endeca
Asterias sanguinolenta O.F. Müller, 1776 – synonym of Henricia sanguinolenta
Asterias spinosa Pennant, 1777 – synonym of Marthasterias glacialis
Asterias spinosa Say, 1825 – synonym of Asterias rubens
Asterias squamata Delle Chiaje, 1829 – synonym of Amphipholis squamata
Asterias vulgaris Packard, 1863 – synonym of Asterias rubens
Asteropsis ctenacantha J. Müller & Troschel, 1842 – synonym of Porania pulvillus
Asteropsis pulvillus O.F. Müller, 1776 – synonym of Porania pulvillus
Astrella simplex Perrier, in Milne-Edwards, 1845 – synonym of Luidia sarsi
Astrogonium aculeatum Barrett, 1857 – synonym of Hippasteria phrygiana
Astropecten acicularis Norman, 1865 – synonym of Astropecten irregularis
Astropecten echinulatis J. Müller & Troschel, 1844 – synonym of Astropecten irregularis
Astropecten helgolandicus Greef, 1871 – synonym of Astropecten irregularis
Astropecten ibericus Perrier, 1886 – synonym of Astropecten irregularis
Astropecten mülleri J. Müller & Troschel, 1842 – synonym of Astropecten irregularis
Axiognathus squamata (Delle Chiaje) – synonym of Amphipholis squamata