CaRMS Taxon list
Aceste Thomson, 1877
Aceste bellidifera Thomson, 1877
Acodontaster Verrill, 1899
Acodontaster elongatus (Sladen, 1889)
Acodontaster elongatus granuliferus (Koehler, 1912)
Acroechinoidea (unaccepted )
Actinopoda
Aeropsidae Lambert, 1896
Aeropsis Mortensen, 1907
Aeropsis rostrata (Norman, 1876)
Allopatiria Verrill, 1913 accepted as Asterina Nardo, 1834
Allopatiria ocellifera (Gray, 1847) accepted as Asterina ocellifera (Gray, 1847) accepted as Patiria ocellifera Gray, 1847
Allostichaster Verrill, 1914
Allostichaster capensis (Perrier, 1875)
Allostichaster hartii (Rathbun, 1879)
Ambuloasteroidea
Ampheraster Fisher, 1923
Ampheraster alaminos Downey, 1971
Amphilepidida
Amphilepidida incertae sedis (temporary name )
Amphioplus Verrill, 1899
Amphioplus (Amphioplus) Verrill, 1899
Amphioplus (Amphioplus) abditus (Verrill, 1871)
Amphipholis Ljungman, 1866
Amphipholis abdita Verrill, 1871 accepted as Amphioplus (Amphioplus) abditus (Verrill, 1871)
Amphipholis squamata (Delle Chiaje, 1828)
Amphipholis torelli Ljungman, 1872
Amphiura Forbes, 1843
Amphiura canadensis Verrill, 1899
Amphiura exigua Verrill, 1899
Amphiura fragilis Verrill, 1885
Amphiura otteri Ljungman, 1872
Amphiura sundevalli (Müller & Troschel, 1842)
Amphiuridae Ljungman, 1867
Amphiuroidea Ljungman, 1867
Anasterias Perrier, 1875
Anasterias antarctica (Lütken, 1857)
Anseropoda Nardo, 1834
Anseropoda grandis Mortensen, 1933
Anseropoda lobiancoi (Ludwig, 1897)
Anseropoda placenta (Pennant, 1777)
Anseropodidae Fisher, 1906 accepted as Asterinidae Gray, 1840
Antedonacea Norman, 1865 accepted as Antedonoidea Norman, 1865
Antedonidae Norman, 1865
Antedonidae incertae sedis (temporary name )
Antedonoidea Norman, 1865
Anthenoides Perrier, 1881
Anthenoides peircei Perrier, 1881
Apodida
Apollonaster Halpern, 1970
Apollonaster yucatanensis Halpern, 1970
Aquilonastra O'Loughlin in O'Loughlin & Waters, 2004
Aquilonastra burtoni (Gray, 1840)
Araeosoma Mortensen, 1903
Araeosoma fenestratum (Thomson, 1872)
Arbacia Gray, 1835
Arbacia lixula (Linnaeus, 1758)
Arbacia punctulata (Lamarck, 1816)
Arbaciella Mortensen, 1910
Arbaciella elegans Mortensen, 1910
Arbaciidae Gray, 1855
Arbacioida
Articulata
Aspidodiadema A. Agassiz, 1879
Aspidodiadema jacobyi A. Agassiz, 1880
Aspidodiadematidae Duncan, 1889
Aspidodiadematoida
Asterias Linnaeus, 1758
Asterias amurensis Lutken, 1871
Asterias forbesi (Desor, 1848)
Asterias rubens Linnaeus, 1758
Asterias vulgaris Verrill, 1866 accepted as Asterias rubens Linnaeus, 1758
Asteriidae Gray, 1840
Asterina Nardo, 1834
Asterina fimbriata Perrier, 1875
Asterina folium (Lütken, 1859) accepted as Asterinides folium (Lutken, 1860)
Asterina gibbosa (Pennant, 1777)
Asterina hartmeyeri Döderlein in Döderlein & Hartmeyer, 1910 accepted as Asterinides hartmeyeri (Döderlein, 1910)
Asterina ocellifera (Gray, 1847) accepted as Patiria ocellifera Gray, 1847 accepted as Allopatiria ocellifera (Gray, 1847)
Asterina pancerii (Gasco, 1876)
Asterina phylactica Emson & Crump, 1979
Asterina stellifera (Möbius, 1859)
Asterina wega Valenciennes (MS) in Perrier, 1869 accepted as Aquilonastra burtoni (Gray, 1840)
Asterinidae Gray, 1840
Asterinides Verrill, 1913
Asterinides folium (Lutken, 1860)
Asterinides hartmeyeri (Döderlein, 1910)
Asterinides pilosa (Perrier, 1881)
Asterinides pompom (A.M. Clark, 1983)
Asterinopsis Verrill, 1913 (uncertain > nomen dubium )
Asterinopsis pilosa (Perrier, 1881) accepted as Asterinides pilosa (Perrier, 1881)
Asteroidea
Asteropseidae Hotchkiss & Clark, 1976
Asterozoa
Astroceramus Fisher, 1906
Astroceramus brachyactis H.L. Clark, 1941
Astroglypha Mah, 2021
Astroglypha passiflora (Downey, 1971)
Astropecten Gray, 1840
Astropecten acutiradiatus Tortonese, 1956