In this work the Author examines for the first time the ultrastructure of the spermatozoon in a Sipunculid worm, Golfingia gouldi. The observed characters indicate a very primitive pattern of marine sperm: non fibrous perforatorium, cup-like acrosome, vesicular mitochondria, «9 + 2» axoneme. The phylogenetical meaning of the observations is discussed.
@article{RLINA_1977_8_62_1_89_0, author = {Baccio Baccetti}, title = {Lo spermatozoo dei Sipunculidi}, journal = {Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti}, volume = {62}, year = {1977}, pages = {89-92}, language = {it}, url = {http://dml.mathdoc.fr/item/RLINA_1977_8_62_1_89_0} }
Baccetti, Baccio. Lo spermatozoo dei Sipunculidi. Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti, Tome 62 (1977) pp. 89-92. http://gdmltest.u-ga.fr/item/RLINA_1977_8_62_1_89_0/
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