Spermiogenesis and sperm ultrastructure of Asetocalamyzas laonicola Tzetlin, 1985 (Polychaeta), an ectoparasite of the large spionid Scolelepis cf. matsugae Sikorsfi, 1994, from the White Sea

• Published in: Scientia Marina
• Main Authors: Vortsepneva, Elena V., Zhadan, Anna E., Tzetlin, Alexander B.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Consejo Superior de Investigaciones Científicas 2006
• Subjects: spermiogenesis; sperm ultrastructure; Asetocalamyzas laonicola; Scolelepis cf. matsugae; espermegiogénesis; ultraestructura del esperma; Asetocalamyza laonicola; Alta; Blanco; Periferia; White Sea
• Online Access: https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/140; https://doi.org/10.3989/scimar.2006.70s3343

The sperm ultrastructure and spermatogenesis of the ectoparasitic polychaete Asetocalamyzas laonicola Tzetlin, 1985 (Calamyzidae) is investigated. The male cells are located freely in the coelom. The spermatocytes are large cells of irregular shape; their nuclei have condensed chromatin in the perip...