Preface 1: Introduction and Systematics 2: Anatomy Annelida, Polychaeta, Errantia, Protodriliformia 3: Protodrilida Pettibone, 1982 4: Polygordius Schneider, 1868 Annelida, Polychaeta, Errantia, Aciculata, Phyllodocida, Aphroditiformia 5: Eulepethidae Chamberlin, 1919 6: Aphroditidae Malmgren, 1867 7: Sigalionidae Kinberg, 1856 8: Acoetidae Kinberg, 1856 9: Iphionidae Kinberg, 1856 10: Polynoidae Kinberg, 1856 Annelida, Polychaeta, Errantia, Aciculata, Phyllodocida (incertae sedis) 11: Syllidae Grube, 1850 12: Nephtyidae Grube, 1850 13: Pilargidae Saint-Joseph, 1899 Annelida, Polychaeta, Errantia, Aciculata, Phyllodocida, Hesionoidea 14: Chrysopetalidae Ehlers, 1864 15: Hesionidae Grube, 1850 16: Nereididae Johnston, 1865 17: Microphthalmidae Hartmann-Schroder, 1971 Annelida, Polychaeta, Errantia, Aciculata, Phyllodocida, Glyceriformia 18: Glyceroidea Fauchald, 1977 19: Sphaerodoridae Malmgren, 1867 20: Tomopteridae Johnston, 1865 Annelida, Polychaeta, Errantia, Aciculata, Phyllodocida, Phyllodociformia 21: Lacydonia Marion, 1874 22: Typhloscolecidae Uljanin, 1878 23: Lopadorrhynchidae Claparede, 1868 24: Phyllodocidae Orsted, 1843 Annelida, Polychaeta, Errantia, Aciculata, Phyllodocida incertae sedis 25: Paralacydonia Fauvel, 1913 26: Phyllodocida incertae sedis Annelida, Polychaeta, Errantia, Aciculata, Eunicida, Oenonoidea 27: Lumbrineridae Schmarda, 1861 28: Oenonidae Kinberg, 1865 Annelida, Polychaeta, Errantia, Aciculata, Eunicida, Eunicoidea 29: Eunicidae Berthold, 1827 30: Onuphidae Kinberg, 1865 Annelida, Polychaeta, Errantia, Aciculata, Eunicida incertae sedis 31: Dorvilleidae Chamberlin, 1919 32: Histriobdellidae Claus Moquin-Tandon, 1884 33: Hartmaniella Imajima, 1977 Annelida, Polychaeta, Errantia, Aciculata incertae sedis 34: Spinther Johnston, 1845 35: Myzostomida Graff, 1877 36: Aberranta Wolf, 1987 37: Nerillidae Levinsen, 1883 Annelida, Polychaeta, Sedentaria, Canalipalpata, Sabellida 38: Sabellidae Latreille, 1825 39: Serpulidae Rafinesque, 1815 40: Fabriciidae Rioja, 1923 Annelida, Polychaeta, Sedentaria, Canalipalpata, Spionida 41: Sabellariidae Johnston, 1865 42: Spionidae Grube, 1850 Annelida, Polychaeta, Sedentaria, Canalipalpata, Oligochaeta 43: Aeolosomatidae Levinson, 1884 44: Hrabeiella Pizl and Chalupsky, 1984 45: Clitellata Michaelsen, 1919 Annelida, Polychaeta, Sedentaria, Canalipalpata, Capitellida 46: Opheliidae Malmgren, 1867 Annelida, Polychaeta, Sedentaria, Canalipalpata, Capitellida, Capitelliformia 47: Thalassematidae Forbes, Goodsir, 1841 48: Capitellidae Grube, 1862 Annelida, Polychaeta, Sedentaria, Canalipalpata, Terebellida 49: Scalibregmatidae Malmgren, 1867 Annelida, Polychaeta, Sedentaria, Canalipalpata, Terebellida, Maldanomorpha 50: Maldanidae Malmgren, 1867 51: Arenicolidae Johnston, 1835 Annelida, Polychaeta, Sedentaria, Canalipalpata, Terebellida, Terebelliformia 52: Pectinariidae Quatrefages, 1866 53: Alvinellidae Desbruyeres and Laubier, 1986 54: Ampharetidae Malmgren, 1866 55: Trichobranchidae Malmgren, 1866 56: Terebellidae Johnston, 1846 57: Melinnidae Chamberlin, 1919 Annelida, Polychaeta, Sedentaria, Canalipalpata, Cirratulida 58: Heterospio Ehlers, 1875 59: Cirratulidae Ryckholdt, 1851 60: Acrocirridae Banse, 1969 61: Flabelligeridae Saint-Joseph, 1894 Annelida, Polychaeta, Sedentaria, Canalipalpata, Sternaspida 62: Paraonidae Cerruti, 1909 63: Sternaspidae Carus, 1863 64: Fauveliopsidae Hartman, 1971 Annelida, Polychaeta, Sedentaria, Canalipalpata incertae sedis 65: Siboglinidae Caullery, 1914 Annelida, Polychaeta, Sedentaria, Orbiniida 66: Orbiniidae Hartman, 1942 67: Parergodrilidae Reisinger, 1925 Annelida, Polychaeta, Sedentaria incertae sedis 68: Cossura Webster and Benedict, 1887 69: Diurodrilidae Kristensen and Niilonen, 1982 Annelida, Polychaeta incertae sedis Dinophiliformia 70: Dinophilidae Macalister, 1876 71: Lobatocerebrum Rieger, 1980 Annelida, no name 72: Amphinomida Lamarck, 1818 73: Sipuncula Stephen, 1964 Annelida, Chaetopteriformia 74: Apistobranchus Levinsen, 1883 75: Psammodrilus Swedmark, 1952 76: Chaetopteridae Audouin and Milne Edwards, 1833 Annelida, Oweniida 77: Oweniidae Rioja, 1917 78: Magelonidae Cunningham and Ramage, 1888 Glossary References