作者: Jan Hendelberg
DOI: 10.1007/978-94-009-7675-7_85
关键词:
摘要: Preliminary results are reported from studies of the ultrastructure spermatozoa two groups turbellarian flatworms: Proseriata and Kalyptorhynchia. Some main characteristics different turbellarians summarized, occurrence parallel evolution (or convergence) is discussed.