Index of Higher Taxa to Volumes 1 and 2 Page numbers in italic refer to Volume 2 [Taxa in brackets] indicate unavailable names, including nomina nuda. nomina oblita. lapsi and preoccupied names. Aaaba de Laubenfels, 1936 .. ... .... ... ........ ... .... ..... ... .... ... ... ... .... .... ... ...... 565 Actinocoelia Finks, 1960 ..................................................................... 389 [Aaata] de Laubenfels, 1930 ............................................................... 440 [Actinoites] Duan, 1984 ..................................................................... 1124 Aaptos Gray, 1867 ............................................................................... 228 Actinostromatidae Nicholson, 1886 ...................................................... 70 [Abila] Gray, 1867 ....................................................................... 440,473 Adocia Gray, 1867 ............................................................................... 863 Abilana Strand, 1928 ... .... ... .... ....... .... ... ......... ... .... ....... .... ... .... ...... ....... 473 Adociidae de Laubenfels, 1936 ........................................................... 852 Abyssocladia Levi, 1964 ......................................................................... 623 Adreissa Topsent, 1932 ........................................................................ 738 Acalle Gray, 1867 ................................................................................ 989 Adreus Gray, 1867 ........ ........ ............ .............. ........................ ........ ..... 187 [Acamas] Duchassaing & Michelotti, 1864 ......................................... 670 Aegogropila Gray, 1867 ....................................................................... 670 Acamasina de Laubenfels, 1936 .......................................................... 670 Afiacyathus Voronin, 1962 ................................................................ 1573 Acanthacarnus Levi, 1952 ................................................................... 414 Agastrocyathus Debrenne, 1964 ........................................................ 1671 Acanthancora Topsent, 1927 ............................................................... 576 Agelas Duchassaing & Michelotti, 1864 ............................................. 820 Acanthascinae Schulze, 1897 ............................................................ 1443 Agelasida Hartman, 1980 .. .......... .............................. .......................... 817 Acanthascus (Acanthascus) Schulze, 1886 ........ ....... ... ... ... .... ....... .... 1447 Agelasidae Verrill, 1907 .. ............ ............ .......... .............. ............ ........ 818 Acanthascus (Rhabdocalyptus) Schulze, 1886 .................................. 1449 Agilardiella Marshall, 1884 .... ............ ........ ...... ............ .......... ........... 1701 Acanthascus (Staurocalyptus) Ijima, 1897 ........................................ 1451 Agyrekocyathidae Konyushkov, 1967 ............................................... 1620 Acanthascus Schulze, 1886 ............................................................... 1447 Agyrekocyathus Konyushkov, 1967 ................................................... 1621 Acanthella Schmidt, 1862 .................................................................. 774 Aiolochroia Wiedenmayer, 1977 ....................................................... 1084 [Acanthellidae] Carter, 1885 ............................................................... 773 Ajacicyathida R Bedford & J Bedford, 1939 .................................... 1552 [Acanthellina] Carter, 1885 ... ..... ... ...... .... ....... ..... ... .... .... ... .... ... .... .... ... 773 Ajacicyathidae R Bedford & J Bedford, 1939 ................................... 1558 Acantheurypon Topsent, 1927 ............................................................. 488 Ajacicyathina R Bedford & J Bedford, 1939 .................................... 1558 Acanthochaetetes Fischer, 1970 .................................................... 66, 276 Ajacicyathus R Bedford & J Bedford, 1939 .............. ........................ 1558 Acanthochaetetidae Fischer, 1970 ............................................... 171,275 Aka de Laubenfels, 1936 ..................................................................... 894 Acanthocinachyra Levi, 1964 ................................................................ 86 AkaidaeAlander, 1942 ........................................................................ 893 Acanthoclada Bergquist, 1970 ............................................................ 756 Alaskacoscinus Debrenne et al., 1990 ............................................... 1674 Acanthocoryna Finks, 1960 ............................................................... 1214 Alataucyathidae Zhuravleva, 1955 .................................................... 1648 Acanthodendrilla Bergquist, 1995 ..................................................... 1075 A1ataucyathoidea Zhurav1eva, 1955 .................................................. 1648 [Acanthodiscus] Volkmer-Ribeiro, 1996 ............................................. 953 Alataucyathus Zhuravleva, 1955 ........ ............ .............. ...... ............... 1648 Acanthodoryx Levi, 1961 .................................................................... 540 [Alcyoncellidae] de Laubenfels, 1936 ............................................... 1388 [Acanthoplakina] Burton, 1959 ............................................................. 78 Alcyoncellum (Quoy & Gaimard, MS) Blainville, 1830 ......... 1415, 1701 Acanthopolymastia Kelly-Borges & Bergquist, 1997 ......................... 209 Alcyonellum Owen, 1849 ................................................................... 1415 Acanthopyrgus Handfield, 1967 ........................................................ 1645 Alcyospongia de Laubenfels, 1934 .... ............ ...... ........ .......... ...... 696, 708 Acanthorhabdus Burton, 1929 ............................................................. 413 [Alebion] Gray, 1867 ........................................................................... 422 Acanthosaccus Schulze, 1899 ........................................................... 1447 Alectona Carter, 1879 .......................................... ............ ............ ........ 282 Acanthostrongylophora Hooper, 1984 ................................................ 908 Alectonidae Rosell, 1996 .... ............ ................ .................... ......... 171, 281 Acanthostylotella Burton & Rao, 1932 ................................................. 510 Alemo Wright, 1881 ............................................................................. 248 Acanthotetilla Burton, 1959 .................................................................. 86 Algol Sollas, 1888 ................................................................................ 118 Acanthotriaena Vace1et et aI., 1976 ..................................................... 145 Allantella Hallmann, 1917 ................................................................... 763 Acanthoxa Hentschel, 1914 ........ .............. ........ ........ ........................... 593 Allantophora Whitelegge, 1907 .......................................................... 643 Acanthoxifer Dendy, 1905 ................................................................... 766 Allassospongia Rigby, 1986 ................................................................ 389 Acarneae Dendy, 1922 ......................................................................... 412 Allocia Hallmann, 1920 ....................................................................... 437 Acarnia Gray, 1867 ............................................................................. 456 Alloscleria Topsent, 1927 .................................................................... 759 Acarnidae Dendy, 1922 ............................................................... 410,412 Alphacyatbidae R Bedford & J Bedford, 1939 ................................. 1638 Acarnidae; Boury-Esnault, 1973 ......................................................... 412 Alphacyathus R Bedford & J Bedford, 1939 ..................................... 1638 [Acarniidae] de Laubenfels, 1936 .. ................ ........ .............. ............... 412 Alpinothalamia Senowbari-Daryan, 1990 ......................................... 1533 Acarnus Gray, 1867 ............................................................................. 414 Alpinothalamiidae Senowbari-Daryan, 1990 .................................... 1533 [Acca] Johnson, 1899 .......................................................................... 894 Altaicyathidae Debrenne & A Zhuravlev, 1992 ................................ 1688 Acervochalina Ridley, 1884 ................................................................ 853 Altaicyathina Debrenne, 1991 ........ ............ ................ .......... ............. 1687 Acheliderma Topsent, 1892 ................ ............ .................. ................... 416 Altaicyathus Vologdin, 1932 ............................................................. 1688 [Achilleum] Oken, 1815 ..................................................................... 1701 Amblysiphonella Steinmann, 1882 .................................................... 1522 [Achinoe] Gray, 1867 ............................................................................. 79 [Ammoconia] Haeckel,