Table of Contents:
  • Calcareous sponges collected by N.O. Thalassa on the continental margin of the Bay of Biscaye: I. Calcinea
  • The Polymastia species (Demosponges, Hadromerida) of the Atlantic Area
  • Distinctive characters within the order Petrosida (=Nepheliospongida)
  • Anisochelae analysis and taxonomy of the genus Mycale Gray (Demospongiae)
  • An enzymatic technique for the separation of spicules from alcohol-preserved sponge tissue
  • Skeletal variation in embryo-containing specimens of Haliclona rosea (Bowerbank) from Anglesey, North Wales
  • The Haplosclerid sponge fauna of Banyuls-sur-mer (Mediterranean), with the description of a new species
  • Littoral Demosponges from the banks of the Strait of Sicily and the Alboran Sea
  • Tetillidae (Spirophorida, Porifera): A taxonomic reevaluation
  • A study of the genus Tethya (Porifera, Demospongiae) and new perspectives in sponge systematics
  • Phylogenetic exercises with monophyletic groups of sponges
  • The use of electrophoresis in sponge taxonomy
  • The calcium carbonate spherules of Hemimycale columella (Demosponges, Poecilosclerida) and their taxonomic value
  • Some remarks on the Mediterranean species of the genus Aplysina (Demospongiae, Verongida)
  • Sexual reproduction, larval morphology and behaviour in Demosponges from the South-West of the Netherlands
  • A review of North-Eastern Atlantic Hemigellius (Niphatidae, Haplosclerida)
  • Participants in the N.A.T.O. workshop
  • Index.