Ontogeny and origin of the brooding system in Antarctic urechinid sea urchins (Echinodermata, Holasteroida) Rich MooiBruno David OriginalPaper Pages: 69 - 78
Diversity of macrociliary size, tooth patterns, and distribution in Beroe (Ctenophora) Sidney L. TammSignhild Tamm OriginalPaper Pages: 79 - 89
Morphological reinvestigation and phylogenetic relationship of Acanthobdella peledina (Annelida, Clitellata) G. PurschkeW. WestheideR. O. Brinkhurst OriginalPaper Pages: 91 - 101
Organisation of the thoracic ganglia of the adult sphinx moth Manduca sexta (Insecta, Lepidoptera) F. SuderG. Wendler OriginalPaper Pages: 103 - 112
The nervous system of Bothriomolus balticus (Proseriata) —a contribution to the knowledge of the orthogon in the Plathelminthes Boris I. JoffeMaria Reuter OriginalPaper Pages: 113 - 127
Comparative ultrastructural studies on scleractinian spermatozoa (Cnidaria, Anthozoa) Sascha C. C. Steiner OriginalPaper Pages: 129 - 136
The lantern of Aristotle: organization of its coelom and origin of its muscles (Echinodermata, Echinoida) Michael Stauber OriginalPaper Pages: 137 - 151
