The Developmental Biology of Urechis

Chapter1. The Biology of Urechis unicinctus
Chapter2. Urechis coelomocytes
Chapter3. Ciliary filtration
Chapter4. Spermatogenesis of Urechis unicinctus
Chapter5. Cytological localization of nuclear actin and tubulin of sperm and spermatids in U. unicinctus
Chapter6. Oocyte differentiation
Chapter7. Contribution of cortical granules to the formation of fertilization envelope and polyspermy block in Urechis uniinctus
Chapter9. Artificial fertilization and parthenolgenetic study on the origin of the meiotic apparatus in Urechisoocytes
Chapter9. Cleavage pattern of U. unicicntus oocyte after artificial fertilization
Chapter10 Hoxgenes of the echiuroid Urechis unicinctus

Index