Adults of Aonides oxycephala, common inhabitants of shallow boreal waters in the Atlantic and Pacific Oceans, release gametes into the water where fertilization and lecithotrophic larval development occur. During spermiogenesis, the acrosomal vesicle migrates from the posterior to the anterior end of...
摘要: The spionids Aonides oxycephala (SARS) and a new subspecies Apoprionospio dayi japonica are described from Japanese waters. These species of Aonides and Apoprionospio are reported for the first time from the Japanese area.年份: 1989 ...