The inner ear of gymnophione amphibians and its nerve supply: A comparative study of regressive events in a complex sensory system (Amphibia, Gymnophiona) B. FritzschM. H. Wake OriginalPaper Pages: 201 - 217
Ovulation and egg segregation in the tunic of a colonial ascidian, Diplosoma listerianum (Tunicata, Ascidiacea) Gian Bruno MartinucciPaolo BurighelRiccardo Brunetti OriginalPaper Pages: 219 - 227
Fertilization in Oikopleura dioica (Tunicata, Appendicularia): Acrosome reaction, cortical reaction and sperm-egg fusion Linda Z. HollandGabriel GorskyRobert Fenaux OriginalPaper Pages: 229 - 243
Ultrastructure of the protonephridia in Pycnophyes kielensis (Kinorhyncha, Homalorhagida) Birger Neuhaus OriginalPaper Pages: 245 - 253