Contents Fifth International Conference on Coelenterate Biology Some Conference participants (group photograph) Foreword Editorial preface A history of the international conferences on coelenterate biology by G. O. Mackie A selected bibliography of collective works concerning cnidarians and ctenophores (1961-1990) PE EE: Ss cng bashed ene amaeneuws 6a ee One eel wee hax tnd casa ded cae eeeewaneioee PROCEEDINGS I. CELLULAR BIOLOGY The extracellular matrix (mesoglea) of hydrozoan jellyfish and its ability to support cell adhesion and spreading by V. Schmid, A. Bally, K. Beck, M. Haller, W. K Schlage & C. Weber Effects of tumor promoters and diacylglycerol on the transdifferentiation of striated muscle cells of the medusa Podocoryne carnea to RF-amide positive nerve cells by E. Kurz & V. Schmid The physiology of feeding in the connaebiia Pleurobrachia pileus by A. G. Moss Behavioural and ultrastructural studies on the sedentary platyctenean ctenophore Vallicula multifor- mis by R. H. Emson & P. J. Whitfield Problems of being a cell in a soft body by M. C. Holley An ultrastructural study of the polyp and strobila of Atorella japonica (Cnidaria, Coronatae) with respect to muscles and nerves by A. Matsuno & S. Kawaguti Rhopalium development in Aurelia aurita ephyrae by D. B. Spangenberg Il. DEVELOPMENTAL BIOLOGY Bud formation in the scyphozoan Cassiopea andromeda: epithelial dynamics and fate map by D. K. Hofmann & M. Gottlieb Basic morphogenetic processes in Hydrozoa and their evolutionary implications: an exercise in rational taxonomy by L. V. Beloussov Regression and replacement of hydranths in thecate hydroids, and the structure of hydrothecae by S. Crowell Differentiation of the interstitial cell line in hydrozoan planulae. I. Repopulation of epithelial planulae by V. J. Martin A low-molecular weight factor from colonial hydroids affects body proportioning and cell differen- tiation by G. Plickert XVI Polyp regeneration from isolated tentacles of Aurelia scyphistomae: a role for gating mechanisms and cell division by G. E. Lesh-Laurie, A. Hujer & P. Suchy Ill. REPRODUCTION Corals and sea anemones Larval development and survivorship in the corals Favia favus and Platygyra lamellina by Y. Shlesinger & Y. Loya Spawning of hermatypic corals in Bermuda: a pilot study by S.C. Wyers, H. S. Barnes & S. R. Smith Annual cycle of gametogenesis and spawning in a tropical zoanthid, Protopalythoa sp. by J. S. Ryland & R. C. Babcock Reproduction and developmental pathways of Red Sea Xeniidae (Octocorallia, Alcyonacea) by Y. Benayahu Sperm morphology of scleractinians from the Caribbean by S.C. C. Steiner Embryonic and larval development of the sea anemone Haliplanella lineata from Japan by Y. Fukui Developmental pathways of anthozoans by D. G. Fautin Life cycles The life cycle of Laodicea indica (Laodiceidae, Leptomedusae, Cnidaria) by J. Bouillon, F. Boero & S. Fraschetti Notes on the morphology, ecology and life cyles of Fukaurahydra anthoformis and Hataia parva (Hydrozoa, Athecata) by M. Yamada & S. Kubota The ampullae and medusae of the calcareous hydrozoan Millepora complanata by J. B. Lewis Observations on the anatomy, behaviour, reproduction and life cycle of the cubozoan Carybdea sivickisi by R. F. Hartwick Distributional ecology and behaviour of the early life stages of the box-jellyfish Chironex fleckeri by R. F. Hartwick Oocyte development in four species of scyphomedusa in the northern Adriatic Sea by M. Avian & L. Rottini Sandrini Reproduction of Pelagia noctiluca in the central and northern Adriatic Sea by L. Rottini Sandrini & M. Avian IV. ECOLOGY Hydroids The growth patterns of some hydroids that are obligate epiphytes of seagrass leaves by R. G. Hughes, S. Johnson & I. D. Smith The growth and degeneration of the hydroid Sertularia perpusilla, an obligate epiphyte of leaves of the seagrass Posidonia oceanica by R. G. Hughes, A. Garcia Rubies & J.-M. Gili The settlement and growth of Sertularia cupressina (Hydrozoa, Sertulariidae) in Langstone Harbour, Hampshire, UK by G. H. Schmidt & G. F. Warner Abundance and distribution of hydroids in a mangrove ecosystem at Twin Cays, Belize, Central America by D. R. Calder The adaptive pattern of growth and reproduction of the colonial hydroid Clavopsella michaeli by S. Piraino Zoanthids, corals and sea anemones Fission and the dynamics of genets and ramets in clonal cnidarian populations by R. H. Karlson Distribution and adaptive strategies of alcyonacean corals in Nanwan Bay, Taiwan by C.-F. Dai Effects of water movement on prey capture and distribution of reef corals [synopsis only] by K. P. Sebens & A. S. Johnson How many damaged corals in Red Sea reef systems? A quantitative survey by B. Riegl & B. Velimirov The effects of Acanthaster planci predation on populations of two species of massive coral by A. M. Cameron, R. Endean & L. M. DeVantier Locomotion, asexual reproduction, and killing of corals by the corallimorpharian Corynactis califor- nica by N. E. Chadwick & C. Adams Comparative ecology of subtidal actiniarians from the coasts of California and the Gulf of Maine, USA by L. G. Harris Associations Coral-crab association: a compact domain of a multilevel trophic system by B. Rinkevich, Z. Wolodarsky & Y. Loya The symbiotic relationship between the hydrocoral Millepora dichotoma and the barnacle Savignium milleporum by P. A. Cook, B. A. Stewart & Y. Achituv Chemical recognition by hermit crabs of their symbiotic sea anemones and a predatory octopus by W. R. Brooks Mutualism between the antipatharian Antipathes fiordensis and the ophiuroid Astrobrachion constric- tum in New Zealand fiords by K. R. Grange Predation on Cnidaria by vertebrates other than fishes by R. M. L. Ates V. PELAGIC COELENTERATES Western Atlantic midwater hydrozoan and scyphozoan medusae: in situ studies using manned submersibles by R. J. Larson, C. E. Mills & G. R. Harbison Swimming movements of ctenophores, and the mechanics of propulsion by ctene rows by G. I. Matsumoto XViil Co-occurrence of hippopodiid siphonophores and their potential prey by P. R. Pugh A review of cnidarians and ctenophores feeding on competitors in the plankton by J. E. Purcell The role of prey stratification in the predation pressure by the cydippid ctenophore Mertensia ovum in the Barents Sea by N. Swanberg & U. Bamstedt Hydromedusae of the Mediterranean Sea by J. Goy Vertical distribution of epipelagic siphonophores at the confluence between Benguela waters and the Angola Current over 48 hours by F. Pagés & J.-M. Gili Attraction of Aurelia and Aequorea to prey by M. Needler Arai VI. ENDOSYMBIOSIS Ainino acids as a nitrogen source for Chlorella symbiotic with green hydra by P. J. McAuley A review of some physiological and evolutionary aspects of body size and bud size of Hydra by L. B. Slobodkin, P. Bossert, C. Matessi & M. Gatto The stable level of coral primary production in a wide light range by E. A. Titlyanov Mechanisms of amplification of photosynthetically active radiation in the symbiotic deep-water coral Leptoseris fragilis by D. Schlichter & H. W. Fricke VII. SKELETOGENESIS The nature of the skeleton and skeletogenic tissues in the Cnidaria by M. D’A. A. Le Tissier Chemistry and structure of skeletal growth rings in the black coral Antipathes fiordensis (Cnidaria, Antipatharia) by W. M. Goldberg VIII. PALAEONTOLOGY Principles of early ontogeny in the rugose corals: a critical review by J. Fedorowski The Bainbridgia-Dualipora association (Cnidaria, Tabulata): palaeogeographical and palaeo- ecological implications by F. Tourneur IX. EVOLUTION AND SYSTEMATICS Crossing-experiments between Japanese populations of three hydrozoans symbiotic with bivalves by S. Kubota The variation of Halocordyle disticha (Cnidaria, Athecata) from the Brazilian coast: an environmen- tal indicator species? by F. L. da Silveira & A. E. Migotto Samuraia tabularasa gen. nov., sp. nov. (Cnidaria, Hydrozoa, Hydrocorynidae), an intertidal hydroid from the Gulf of California, Mexico by K. L. Mangin A jellyfish-eating sea anemone (Cnidaria, Actiniaria) from Palau: Entacmaea medusivora sp. nov. by D. G. Fautin & W. K. Fitt Taxonomic characters from the polyp tubes of coronate medusae (Scyphozoa, Coronatae) by G. Jarms Morphological differences between, and reproductive isolation of, two populations of the jellyfish Cvanea in Long Island Sound, USA by R. H. Brewer X. BIOGEOGRAPHY The benthic deep-water siphonophore Rhodalia miranda and other coelenterates in the south-west Atlantic: ecological and oceanographical implications by K. Riemann-Ziirneck Hydromedusan distribution patterns by S. van der Spoel Siphonophores of upwelling areas of the Campeche Bank and the Mexican Caribbean Sea by R. Gasca & E. Suarez XI. GENETICS Molecular aspects Dead-end evolution of the Cnidaria as deduced from 5S ribosomal RNA sequences by H. Hori & Y. Satow Relationships within the family Actiniidae (Cnidaria, Actiniaria) based on molecular characters by S. A.M cCommas The heat shock response in hydra: immunological relationship of hsp60, the major heat shock protein of Hydra vulgaris, to the ubiquitous hsp70 family by T. C. G. Bosch & G. Praetzel Population structure and behaviour of sea anemones Effects of asexual reproduction on population structure of Sagartia elegans (Anthozoa, Actiniaria) by P. W. Shaw Gonad development of the sea anemone Anthopleura asiatica in clonal populations by H. Fujii Experimental habituation of aggression in the sea anemone Actinia equina by R.C. Brace & S.-J. Santer Acrorhagi, catch tentacles and sweeper tentacles: a synopsis of ‘aggression’ of actiniarian and scleractinian Cnidaria by R. B. Williams XII. PHYSIOLOGY AND BEHAVIOUR Transmitters Monoamine concentrations in Hydra magnipapillata by N. Takeda & C. N. Svendsen Neuropeptides in coelenterates: a review by C. J. P. Grimmelikhuijzen, D. Graff, O. Koizumi, J. A. Westfall & I.D. McFarlane .... Peptides in the Hydrozoa: are they transmitters? by A. N. Spencer Bioluminescence Observations on bioluminescence in some deep-water anthozoans by P. J. Herring XX Propagation of bioluminescence in Euphysa japonica hydromedusae (Tubulariidae) by G. O. Mackie Sensory systems Interaction between the effects of light pulses of different chromatic content on Hydra attenuata and H. magnipapillata by C. Taddei-Ferretti & A. Cotugno The physiological control of feeding in corals: a review by I. D. Lawn & I. D. McFarlane The senses of sea anemones: responses of the SS1 nerve net to chemical and mechanical stimuli by I. D. McFarlane & I. D. Lawn XIII. NEMATOCYSTS Nematocysts of the Mediterranean hydroid Halocordyle disticha by C. Ostman, S. Piraino & W. Kem A comparative analysis of nematocysts in Pelagia noctiluca and Rhizostoma pulmo from the North Adriatic Sea by M. Avian, P. Del Negro & L. Rottini Sandrini Differentiation and ultrastructure of nematocysts in Halammohydra intermedia (Hydrozoa, Cnidaria) by C. Clausen Clinical manifestations of jellyfish envenomation by J. W. Burnett Cubozoan jellyfish envenomation syndromes and their medical treatment in northern Australia by P. J. Fenner Envenomation by the box-jellyfish Chironex fleckeri: how nematocysts discharge by R. Endean, J. F. Rifkin & L. Y.M. Daddow Cnida discharge and the mechanism of venom delivery in Anemonia viridis (Cnidaria, Actiniaria) by J. C. Thomason Effects of controlled treatment with trypsin on the functional characteristics of isolated nematocysts of Calliactis parasitica and Aiptasia mutabilis (Cnidaria, Actiniaria) by A. Salleo, G. La Spada, A. Brancati & P. Ciacco The spatial distribution of cations in nematocytes of Hydra vulgaris by I. Gerke, K. Zierold, J. Weber & P. Tardent Discharge of nematocysts isolated from aeolid nudibranchs by P. G. Greenwood & L. K. Garrity The differentiation of cytoskeletal structures in nematocytes of Hydra by U. Schertenleib & R. P. Stidwill Remodelling during the development of nematocysts in a siphonophore by R. J. Skaer Nematocysts of sea anemones (Actiniaria, Ceriantharia and Corallimorpharia: Cnidaria): nomen- clature by K. W. England Titles of presentations given during the conference but not included in the Proceedings Author index Taxonomic index Subject index