The influence of web monitoring tactics on the tracheal systems of spiders in the family Uloboridae (Arachnida, Araneida) Brent D. Opell OriginalPaper Pages: 255 - 259
Fine structure of the dorsal arm plate of Ophiocoma wendti: Evidence for a photoreceptor system (Echinodermata, Ophiuroidea) Gordon HendlerMaria Byrne OriginalPaper Pages: 261 - 272
A phylogenetic study of the antenna cleaner in Formicidae, Mutillidae, and Tiphiidae (Insecta, Hymenoptera) Klaus SchönitzerGerwig Lawitzky OriginalPaper Pages: 273 - 285
Ultrastructural studies on the reproductive system of Gyrocotylidea and Amphilinidea (Cestoda) W. E. R. Xylander OriginalPaper Pages: 293 - 297
The relation between cypris ultrastructure and metamorphosis in male and female Sacculina carcini (Crustacea, Cirripedia) J. T. Høeg OriginalPaper Pages: 299 - 311
Interspecific variation in arrangement and morphology of micrasters of Tethya species (Porifera, Demospongiae) Michele SaràElda Gaino OriginalPaper Pages: 313 - 317