Preface to the Series -- Preface to this Volume -- LITERATURE CITED -- Contents -- I-General Reproduction and Phylogeny -- 1. Annelid Phylogeny and Systematics -- 1.1 INTRODUCTION -- 1.2 MONOPHYLY OF ANNELIDA -- 1.2.1 Morphology and Monophyly -- 1.2.2 Molecular Sequence Data -- 1.3. ANNELIDA SUBGROUPS -- 1.3.1 Pogonophora, Vestimentifera and Echiura -- 1.3.2 Clitellata, Hirudinida and Oligochaetes -- 1.3.3 Polychaetes -- 1.4 SYSTEMATIZATION USED IN THIS VOLUME -- 1.5 ROOTING THE ANNELID TREE -- 1.6 ACKNOWLEDGEMENTS -- 1.7 LITERATURE CITED -- 2. Oogenesis -- 2.1 INTRODUCTION -- 2.2 OVARIAN MORPHOLOGY AND PATTERNS OF OOGENESIS -- 2.2.1 Introduction -- 2.2.2 Patterns of Oogenesis -- 2.3 OOGENESIS: PREVITELLOGENESIS -- 2.4 OOGENESIS: VITELLOGENESIS -- 2.5 PHYLOGENETIC IMPLICATIONS OF OOGENESIS -- 2.6 CONCLUSIONS -- 2.7 LITERATURE CITED -- 3. Annelid Sperm and Spermiogenesis -- 3.1 INTRODUCTION -- 3.2 SPERMIOGENESIS -- 3.3 SPERMATOZOA -- 3.3.1 Sperm Terminology -- 3.3.2 Recent Descriptions of Annelid Sperm Ultrastructure -- 3.4 SPERM OF SOME UNUSUAL ANNELIDS -- 3.4.1 Diurodrilus -- 3.4.2 Aeolosomatidae and Potamodrilus -- 3.4.3 Siboglinidae -- 3.4.4 Myzostomida -- 3.5 ANNELID SPERM AND SYSTEMATICS -- 3.6 WHAT IS THE PLESIOMORPHIC SPERM TYPE IN ANNELIDA? -- 3.7 ACKNOWLEDGEMENTS -- 3.8 LITERATURE CITED -- 4. Sexual Strategies and Mating Systems -- 4.1 INTRODUCTION -- 4.2 SIMULTANEOUS HERMAPHRODITISM -- 4.3 SEQUENTIAL HERMAPHRODITISM -- 4.4 GONOCHORISM -- 4.5 MIXED STRATEGIES AND FACULTATIVE CHANGE OF GENDER -- 4.6 PARENTAL CARE -- 4.7 LITERATURE CITED -- 5. Early Annelid Development, A Molecular Perspective -- 5.1 INTRODUCTION -- 5.2 THE EGG -- 5.3 CLEAVAGE -- 5.4 GASTRULATION AND GUT DEVELOPMENT -- 5.5 SEGMENTATION -- 5.6 OTHER GENE EXPRESSION PATTERNS DURING MORPHOGENESIS: TWO CASE STUDIES OF THE CANDIDATE GENE APPROACH -- 5.6.1 Engrailed.

5.6.2 Hox Genes -- 5.7 SUMMARY AND PROSPECTS FOR FUTURE RESEARCH -- 5.8 ACKNOWLEDGEMENTS -- 5.9 LITERATURE CITED -- 6. Annelid Larval Morphology -- 6.1. INTRODUCTION -- 6.2. CILIATED BANDS OF LARVAE -- 6.3 TERMS TO DESCRIBE ANNELID LARVAE -- 6.4 LECITHOTROPHY AND LARVAL FEEDING -- 6.5. METAMORPHOSIS -- 6.6 EVOLUTION OF ANNELID LARVAE -- 6.6.1 Introduction -- 6.6.2 Downstream Feeding with Meniscotroch (four kinds?) -- 6.6.3 Opposed-band Larval Feeding (six kinds?) -- 6.6.4 Other Downstream Feeding Mechanisms (four kinds?) -- 6.7 SUMMARY AND CONCLUSIONS -- 6.8 ACKNOWLEDGEMENTS -- 6.9 LITERATURE CITED -- 7. Larval Ecology of the Annelida -- 7.1 INTRODUCTION -- 7.2 LARVAL ECOLOGY -- 7.2.1 Dispersal Potential and Abiotic Factors -- 7.2.2 Larval Trophic Ecology -- 7.2.3 Site of Development -- 7.2.4 Developmental Variation at Generic and Species Level -- 7.2.5 Consequences of Developmental Modes -- 7.2.6 Settlement and Metamorphosis -- 7.2.6.1 Introduction -- 7.2.6.2 Settlement -- 7.2.6.3 Metamorphosis -- 7.2.7 Cues for Settlement and Metamorphosis -- 7.2.7.1 Introduction -- 7.2.7.2 External non-chemical cues -- 7.2.7.3 External chemical cues -- 7.2.7.4 Cues from bacteria -- 7.2.7.5 Cues from diatoms -- 7.2.7.6 Environmental impact on bioactivity of biofilms -- 7.2.7.7 Partially characterized chemical cues -- 7.2.7.8 Inhibitive cues to settlement -- 7.3 ACKNOWLEDGEMENTS -- 7.4 LITERATURE CITED -- II-Selected Groups of Annelida -- 8. Non-leech Clitellata -- 8.1 PHYLOGENY AND SYSTEMATICS -- 8.1.1 Definition of Clitellates -- 8.1.2 Molecular Evidence for Higher Clitellate Relationships -- 8.1.3 Phylogeny and Classification of Oligochaetes Sensu Stricto -- 8.1.4 Phylogeny of the Oligochaete Families -- 8.1.5 Spermatozoal Phylogeny -- 8.1.6 Revised Classification of the Clitellata -- 8.2 ANATOMY AND EVOLUTION OF THE OLIGOCHAETE REPRODUCTIVE SYSTEM.

8.2.1 Gonoducts -- 8.2.2 The Clitellum -- 8.2.3 Chaetae Associated with Reproduction -- 8.2.4 Male Pores and Accessory Genital Markings -- 8.2.5 Female Pores -- 8.2.6 Spermathecal Pores -- 8.2.7 Prostate and other Glands and Bursae Associated with the Male Ducts -- 8.2.8 Spermathecae -- 8.2.9 Spermatophores -- 8.2.10 Spermatozeugmata -- 8.2.11 Taxonomic Survey of Reproductive Systems -- 8.2.11.1 Subclass Randiellata -- 8.2.11.2 Subclass Tubificata -- 8.2.11.3 Subclass Lumbriculata -- 8.2.11.4 Subclass Diplotesticulata -- 8.3 OOGENESIS -- 8.4 SPERMATOGENESIS AND SPERMATOZOAL ULTRASTRUCTURE (MARCO FERRAGUTI AND BARRIE G.M. JAMIESON) -- 8.4.1 Spermatogenesis -- 8.4.2 Mature Spermatozoa -- 8.4.3 Double Spermatogenesis in Oligochaetes -- 8.5 MATING AND COITION (BARRIE G.M. JAMIESON) -- 8.6 FERTILIZATION, CLEAVAGE AND DEVELOPMENT -- 8.6.1 Sperm Entry, Polarity and Meiosis -- 8.6.2 Evidence for Polarity in the Primary Oocyte -- 8.6.3 Embryogenesis -- 8.6.4 Organogenesis -- 8.7 ACKNOWLEDGMENTS -- 8.8 LITERATURE CITED -- 9. Hirudinida -- 9.1 PHYLOGENY AND SYSTEMATICS -- 9.2 ANATOMY WITH REFERENCE TO THE REPRODUCTIVE SYSTEM -- 9.3 GAMETOGENESIS -- 9.4 MATING, FERTILIZATION AND PARENTAL CARE -- 9.5 DEVELOPMENT -- 9.5.1 Cellular Aspects of Leech Development: Cell Lineages and Cell Fates -- 9.5.2 Molecular Aspects of Leech Development: Developmental Regulatory Genes -- 9.6 LITERATURE CITED -- 10. Phyllodocida -- 10.1 PHYLOGENY AND SYSTEMATICS -- 10.2 ANATOMY WITH REFERENCE TO THE REPRODUCTIVE SYSTEM -- 10.2.1 Epitoky -- 10.2.2 Segmental Organs -- 10.3 OOGENESIS -- 10.4 SPERM ULTRASTRUCTURE -- 10.5 MATING AND FERTILIZATION -- 10.6 DEVELOPMENT -- 10.7 EVOLUTION OF REPRODUCTIVE MECHANISMS -- 10.8 ACKNOWLEDGMENTS -- 10.9 LITERATURE CITED -- 11. Cirratuliformia -- 11.1 INTRODUCTION -- 11.2 PHYLOGENY AND SYSTEMATICS -- 11.2.1 Taxonomic Review.

11.2.2 Recent Systematic Revisions -- 11.3 ANATOMY WITH REFERENCE TO THE REPRODUCTIVE SYSTEM -- 11.3.1 Gonads and Gonoducts -- 11.3.2 Accessory Appendages -- 11.4 ENDOCRINOLOGY OF REPRODUCTION -- 11.5 OOGENESIS -- 11.6 SPERMATOGENESIS -- 11.7 MATING AND FERTILIZATION -- 11.8 DEVELOPMENT -- 11.9 ACKNOWLEDGEMENTS -- 11.10 LITERATURE CITED -- 12. Sabellida -- 12.1 PHYLOGENY AND SYSTEMATICS -- Oweniidae -- Sabellariidae -- Sabellidae -- Serpulidae -- Siboglinidae -- 12.2 ANATOMY WITH REFERENCE TO THE REPRODUCTIVE SYSTEM -- 12.3 REPRODUCTION -- 12.4 EGGS -- 12.5 SPERM -- 12.6 MATING AND FERTILIZATION -- 12.7 LARVAL DEVELOPMENT -- 12.8 ASEXUAL REPRODUCTION -- 12.9 EVOLUTION OF REPRODUCTIVE MECHANISMS -- 12.10 ACKNOWLEDGEMENTS -- 12.11 LITERATURE CITED -- 13. Spionida -- 13.1 INTRODUCTION -- 13.2 PHYLOGENY AND SYSTEMATICS -- 13.2.1 Systematic History and Current Classification of Spionida -- 13.2.2 Review of Phylogenetic Approaches and Suggested Classification -- 13.3 MORPHOLOGY OF THE FEMALE REPRODUCTIVE SYSTEM, OOGENESIS, AND MORPHOLOGY OF THE EGGS -- 13.4 MORPHOLOGY OF THE MALE REPRODUCTIVE SYSTEM, SPERMATOGENESIS, AND MORPHOLOGY OF THE SPERM -- 13.5 MATING AND FERTILIZATION -- 13.5.1 Broadcast Spawners -- 13.5.2 Spermatophore Formation and Sperm Transfer -- 13.5.3 Egg Capsule Formation -- 13.6 DEVELOPMENT -- 13.6.1 Seasonality of Reproduction and Development -- 13.6.2 Larval Development of Broadcast Spawners -- 13.6.3 Larval Development of Viviparous Species -- 13.6.4 Larval Development of Brooded Species Having Egg Capsules -- 13.6.4.1 Diversity of planktic larvae of the polydora complex -- 13.6.5 Direct Development -- 13.6.6 Poecilogony and Adelphophagia -- 13.7 ASEXUAL REPRODUCTION -- 13.8 ACKNOWLEDGMENTS -- 13.9 LITERATURE CITED -- 14. Problematic Annelid Groups -- 14.1 PHYLOGENY AND SYSTEMATICS.

14.2 ANATOMY WITH REFERENCE TO THE REPRODUCTIVE SYSTEM -- 14.3 OOGENESIS -- 14.4 SPERMATOGENESIS AND SPERMATOZOA -- 14.5 MATING AND FERTILIZATION -- 14.6 DEVELOPMENT -- 14.7 ACKNOWLEDGEMENTS -- 14.8 LITERATURE CITED -- Index.