URMO Taxon list
Abietinaria abietina (Linnaeus, 1758)
Abietinaria alexanderi Nutting, 1904
Abietinaria alternitheca (Kudelin, 1914)
Abietinaria amphora Nutting, 1904 accepted as Abietinaria inconstans (Clark, 1877)
Abietinaria anguina (Trask, 1857)
Abietinaria annulata (Kirchenpauer, 1884)
Abietinaria cartilaginea Kirchenpauer, 1884 accepted as Abietinaria variabilis (Clark, 1877)
Abietinaria compressa (Merezhkovskii, 1878)
Abietinaria costata (Nutting, 1901) accepted as Abietinaria inconstans (Clark, 1877)
Abietinaria crassiparia Naumov, 1960
Abietinaria cruciformis Antsulevich, 1987
Abietinaria derbeki (Kudelin, 1913)
Abietinaria elsaeoswaldae Stechow, 1923
Abietinaria expansa Fraser, 1938
Abietinaria filicula (Ellis & Solander, 1786)
Abietinaria fusca (Johnston, 1847)
Abietinaria gagarae Naumov, 1960
Abietinaria gigantea (Clark, 1877)
Abietinaria gracilis Nutting, 1904
Abietinaria greenei (Murray, 1860) accepted as Amphisbetia greenei (Murray, 1860)
Abietinaria immersa Vervoort, 1993
Abietinaria inconstans (Clark, 1877)
Abietinaria interversa (Pictet & Bedot, 1900)
Abietinaria juniperus Kirchenpauer, 1884
Abietinaria kincaidi (Nutting, 1901)
Abietinaria labrata (Murray, 1860) accepted as Abietinaria anguina (Trask, 1857)
Abietinaria laevimarginata (Ritchie, 1907)
Abietinaria macrotheca Naumov, 1960
Abietinaria melo Kirchenpauer, 1884
Abietinaria merkii Kirchenpauer, 1884
Abietinaria pacifica Stechow, 1923
Abietinaria pulchra (Nutting, 1904)
Abietinaria raritheca Naumov, 1960
Abietinaria rigida Fraser, 1911
Abietinaria smirnowi (Kudelin, 1914)
Abietinaria spiralis Naumov, 1960
Abietinaria thuiarioides (Clark, 1877)
Abietinaria thujarioides (Clark, 1877) accepted as Abietinaria thuiarioides (Clark, 1877)
Abietinaria traski (Torrey, 1902)
Abietinaria trigona Antsulevich, 1987
Abietinaria turgida (Clark, 1877)
Abietinaria urceolus Naumov, 1960 accepted as Abietinaria gigantea (Clark, 1877)
Abietinaria variabilis (Clark, 1877)
Abietinella operculata (Jäderholm, 1903)
Abyla bicarinata Moser, 1925
Abyla carina Haeckel, 1888 accepted as Abyla trigona Quoy & Gaimard, 1827
Abyla haeckeli Lens & van Riemsdijk, 1908
Abyla ingeborgae Sears, 1953 accepted as Abyla haeckeli Lens & van Riemsdijk, 1908
Abyla peruana Sears, 1953 accepted as Abyla trigona Quoy & Gaimard, 1827
Abyla schmidti Sears, 1953 accepted as Abyla trigona Quoy & Gaimard, 1827
Abyla tottoni Sears, 1953 accepted as Abyla bicarinata Moser, 1925
Abyla trigona Quoy & Gaimard, 1827
Abylopsis eschscholtzii (Huxley, 1859)
Abylopsis tetragona (Otto, 1823)
Acaulis primarius Stimpson, 1853
Acaulis rosea (Verrill, 1878) accepted as Candelabrum phrygium (Fabricius, 1780)
Acauloides ammisatum Bouillon, 1965
Acauloides ilonae (Brinckmann-Voss, 1966)
Acromitoides purpurus (Mayer, 1910)
Acromitoides stiphropterus (Schultze, 1898)
Acromitus flagellatus (Maas, 1903)
Acromitus hardenbergi Stiasny, 1934
Acromitus maculosus Light, 1914
Acromitus rabanchatu Annandale, 1915
Acromitus tankahkeei Light, 1924
Acryptolaria abies (Allman, 1877)
Acryptolaria andersoni Totton, 1930
Acryptolaria angulata (Bale, 1914)
Acryptolaria arboriformis (Ritchie, 1911)
Acryptolaria conferta (Allman, 1877)
Acryptolaria corniformis Naumov & Stepanjants, 1962
Acryptolaria elegans (Allman, 1877)
Acryptolaria flabellum (Allman, 1888)
Acryptolaria gracilis (Allman, 1888)
Acryptolaria longitheca (Allman, 1877)
Acryptolaria minima Totton, 1930
Acryptolaria minuta Watson, 2003
Acryptolaria normani Nutting, 1927 accepted as Zygophylax tizardensis Kirkpatrick, 1890
Acryptolaria operculata Stepanjants, 1979
Acryptolaria patagonica El Beshbeeshy, 2011 accepted as Acryptolaria operculata Stepanjants, 1979
Acryptolaria pulchella (Allman, 1888)
Acryptolaria rectangularis (Jarvis, 1922)
Acryptolaria symmetrica (Nutting, 1906) accepted as Cryptolaria symmetrica Nutting, 1906
Acryptolaria tortugasensis Leloup, 1935
Adelopora crassilabrum Cairns, 1991
Adelopora fragilis Cairns, 1991
Adelopora moseleyi Cairns, 1991
Adelopora pseudothyron Cairns, 1982
Aegina citrea Eschscholtz, 1829
Aeginodiscus actinodiscus Haeckel, 1879 (uncertain > taxon inquirendum )
Aeginopsis laurentii Brandt, 1838
Aeginura beebei Bigelow, 1940
Aeginura grimaldii Maas, 1904
Aeginura lanzarotae (Haeckel, 1879) (uncertain > taxon inquirendum )
Aequorea aequorea (Forsskål, 1775) accepted as Aequorea forskalea Péron & Lesueur, 1810
Aequorea africana Millard, 1966
Aequorea albida A. Agassiz, 1862
Aequorea australis Uchida, 1947
Aequorea coerulescens (Brandt, 1835)
Aequorea conica Browne, 1905