This book is an outcome of the second European conference on Echinoderm brussels held in Belgium in 1989. It covers the following areas of research in echinoderm: paleontology, reproduction, development and larval biology, evolution, systematics and biogeography, morphology and physiology.

Michel Jangoux (Author)

Plenary lectures 1. The significance of a non-centralized nervous system to general studies on echinoderm biology 2. Palaeontological approaches to evolution in echinoderms 3. Biological control of skeleton properties in echinoderms Palaeontology 4. Depositional environment and palaeoecology of crinoid-communities from the Middle Jurassic Burgundy-Platform of Western Europe 5. Premieres decouvertes du genre Trachypatagus Pomel (Echinoidea, Spatangoida) dans les terrains miocenes du bassin du Rhone 6. L'ancetre eocene des Scutellidae (Echinoidea; Clypeasteroida) 7. Strategie adaptative des Hemiaster et des Periaster du Cretace superieur (Cenomanien-Coniacien) de la plate-forme carbonatee de Tunisic Reproduction, development and larval biology 8. Isolation of a vitellogenic protein from Asterias rubens L. 9. Second generation of Paracentrotus lividus reared in the laboratory: Egg quality tested 10. Reproduction asexuee par scission chez Holothuria atra (Holothuroidea) dans des populations de platiers recifaux 11. Reproductive biology of Tripneustes gratilla (L.) from Gulf of Aqaba and northern Red Sea 12. Reproductive cycle of the ophiuroid Acrocnida brachiata (Montagu) in the Bay of Seine (English Channel) 13. Effect of starvation and the time to first feeding on larvae of Luidia clathrata (Say) (Echinodermata: Asteroidea) 14. The attachment complex of the doliolaria larvae of Antedon bifida (Echinodermata, Crinoidea) 15. Le developpement precoce de l'echinide incubant Abatus cordatus: Un nouveau type de gastrulation Evolution, systematics and biogeography 16. Les Crinoides pedoncules de Nouvelle-Caledonie: Inventaire et reflexions sur les taxons archaiques 17. Strategies de dispersion et insularite: Les Ophiures littorales de la chaine des Seammounts Vitoria-Trintade (Bresil); resultats preliminaires 18. Mapping morphological changes in the spatangoid Echinocardium: Applications to ontogeny and interspecific comparisons 19. Progenetic miniaturization in the sand dollar Sinaechinocyamus: Implications for clypeasteroid phylogeny Growth, population dynamics and ecology 20. Frequence et causes presumees de ta regeneration brachiale chez Amphipholis squamata (Echinodermata: Ophiuroidea) 21. Essai d'estimation de la croissance de l'holothuride Holothuria tubulosa (Echinodermata) en aquarium 22. Ecologie des bancs d'Ophiothrix fragilis (Abildgaard) var. pentaphyllum du detroit du Pas-de-Calais (France) 23. Distribution pattems of regular sea urchins (Echinodermata: Echinoidea) across the Spermonde Shelf, SW Sulawesi (Indonesia) 24. Composition biochimique et contenu energetique du tegument de l'holothurie Neopentadactyla mixta (Echinodermata) 25. Dynamique de population, croissance et longevite de la comatule Antedon bifida (Echinodermata, Crinoidea) 26. Influence de la temperature sur la croissance de deux oursins comestibles, Paracentrotus lividus et Psammechinus miliaris Morphology and physiology 27. Unusual sensory structures on the spines and tentacle scales of the brittlestar Ophiocomina nigra (Echinodermata) 28. Morphological observations on the axial organ of Antedon bifida 29. Functional analysis of the tooth support in echinoids 30. Functional morphology of the peristomial membrane of regular sea-urchins: Structural organization and mechanical properties in Paracentrotus lividus 31. Ultrastructure des ossicules d'echinodermes a stereome non perfore 32. Feeding and adaptations for feeding in Euryaline brittle-stars: A review 33. Morphologie fonctionnelle des podia penicilles chez I'echinide fouisseur Echinocardium cordatum (Echinodermata) 34. Ultrastructure and presumed origin of the phagocytic cells involved in the regression of headless stalks of globiferous pedicellariae in the echinoid Sphaerechinus granularis (Echinodermata) 35. Morphologie fonctionnelle des clavules chez le spatangide Echinocardium cordatum (Echinoidea, Echinodermata) 36. Ultrastructure and innervation of fine non-striated muscles in the arm of Antedon bifida 37. Structure fine des spherulocytes de Vholothuride Holoturia tebulosa (Echinodermata) 38. Mode of arm development in multiarmed species of asteroids 39. Biomineralization in echinoderms 40. Functional morphology of the muscle-skeleton attachments in the pediceflariae of echinoids and asteroids 41. Behavioural thresholds 10 chemical stimuli in the brittle star Ophiura ophiura 42. Ultrastructure and innervation of ligament connective tissue in Antedon bifida and Decametra Sp. 43. Morphological and physiological aspects of the autotomy plane in the aboral integument of Asterias rubens L. (Echinodermata) Symbiosis 44. Postmetamorphic development of Myzostomum cirriferum (Annelida) and effects of the symbiote on its crinoid host, Antedon bifida (Echinodermata) 45. Physiotagical aspects of echinoderm-turbellarian entosymbioses 46. Detection and quantification of 1-methyladenine released and stored in starfish follicte cells 47. Kesorption squelettique dans le pedoncule des pedicellaires gtabiferes de l'echinide Sphacrechinus granularis 48. Reproduction of the sea star Asterias rubens as a sensitive indicator of marine pollution 49. Induction of polyspermic cleavage by cadmium in the carly development of Asterias rubens 50. Conditions de la distribution differentictle d'Ophiura albida et O. texturata dans ta Manche 51. Functional morphology of the peripharyngeal coelom of regular echinoids (Euechinoidea, Echinodermata) 52. Shallow water Asteroidea (Echinodermata) from the coral reefs of the Maldive Islands 53. Les Hemiaster (Echinoidea: Spatangoida): Marqueurs ecologiques d'une paleogeographie au Cretace superieur 54. Energetic variation during starvation (hibernation) of the dendrochirote holothuroid Thyone fusus (O F Muller) 55. Ultrastructural evidence that coelomocytes are involved in nutrient transport in Asterias rubens 56. Ontogenese du genre Astrophiura Sladen (Echinodermata, Ophiuroidea) et rehabilitation de la famille des Astrophiuridae Sladen