Aquatic Oligochaetes: Proceedings of the 7th International Symposium on Aquatic Oligochaetes held in Presque Isle, Maine, USA, 18–22 August 1997

Front Matter....Pages i-xiv
Past symposium attendees in the group photographs....Pages 1-7
Retrospect and Prospect: reflections on forty years of study of aquatic oligochaetes....Pages 9-19
Zoogeography of branchiobdellidans (Annelida) and temnocephalidans (Platyhelminthes) ectosymbiotic on freshwater crustaceans, and their reactions to one another in vitro ....Pages 21-31
Studies on the aquatic oligochaete fauna in Lake Biwa, central Japan. II. Records and taxonomic remarks of nine species....Pages 33-47
 Monopylephorus camachoi nov. sp., a new rhyacodriline worm (Tubificidae: Clitellata) from the Coiba Island, on the east Pacific Coast of Panama....Pages 49-55
Records of Enchytraeidae (Clitellata) from the People’s Republic of China....Pages 57-66
Distribution of freshwater oligochaetes in the west and east coastal regions of the North Pacific Ocean....Pages 67-81
Enzymatic variability in sympatric species of Tubifex (Clitellata: Tubificidae)....Pages 83-86
Terrestrial polychaetes — models for the evolution of the Clitellata (Annelida)?....Pages 87-99
Clitellate diversity in Nationalstadsparken, an urban national park in Stockholm, Sweden....Pages 101-110
Finding enchytraeid oligochaetes (Clitellata) in hot climates: species occurrence on the shores of Bermuda....Pages 111-117
Spatial distribution of oligochaetes (Clitellata) in the tidal freshwater and brackish parts of the Schelde estuary (Belgium)....Pages 119-132
Distribution and dispersal capacity of the Ponto-Caspian tubificid oligochaete Potamothrix heuscheri (Bretscher, 1900) in Scandinavia....Pages 133-142
Oligochaeta and Aphanoneura in two Northern German hardwater lakes of different trophic state....Pages 143-148
Micro-distribution of oligochaetes in a soft-bottomed lowland stream (Elsbeek; The Netherlands)....Pages 149-163
Oligochaeta from the abyssal zone of Lake Baikal (Siberia, Russia)....Pages 165-174
Oligochaetes of Karavasta Lagoon (Albania). Preliminary results....Pages 175-182
A comparison among different population models for Limnodrilus hoffmeisteri Claparède (Oligochaeta, Tubificidae)....Pages 183-189
Assessment of secondary production of naididae (Oligochaeta): an example from a North German lake....Pages 191-198
Ultrastructure and functional significance of intestinojunctional spermathecae in enchytraeids (Oligochaeta, Annelida)....Pages 199-211
New sperm types in Naididae and Lumbriculidae (Annelida: Oligochaeta) and their possible phylogenetic implications....Pages 213-222
CLSM analysis of serotonin-immunoreactive neurons in the central nervous system of Nais variabilis , Slavina appendiculata and Stylaria lacustris (Oligochaeta: Naididae)....Pages 223-233
 Tubificoides benedii (Tubificidae, Oligochaeta) — a pioneer in hypoxic and sulfidic environments. An overview of adaptive pathways....Pages 235-241
Decoupling of fission and regenerative capabilities in an asexual oligochaete....Pages 243-251
Autotomy reflex in a freshwater oligochaete, Lumbriculus variegatus (Clitellata: Lumbriculidae)....Pages 253-261
Helical swimming and body reversal behaviors in Lumbriculus variegatus (Annelida: Clitellata: Lumbriculidae)....Pages 263-269
Bioaccumulation test with Tubificid Sludgeworms in artificial media development of a standardisable method....Pages 271-280
Lumbriculids, branchiobdellidans and leeches: an overview of recent progress in phylogenetic research on clitellates....Pages 281-290