13 research outputs found
An electron microscope study of spermiogenesis in Spirorbis (Laeospira) m�rchi Levinsen (Polychaeta)
No full textUltrastructure of the male nephridium and its role in spermatophore formation in spionid polychaetes (Annelida)
No full textUltrastructure of spermatids and spermatozoa in three polychaetes with modified biology of reproduction: Autolytus
No full textA freeze-fracture study of the nuclear envelope during spermiogenesis inMarsilea. Formation of a pore-free zone associated with the microtubule ribbon
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An ultrastructural study of the opercular filament blood vessel ofPomatoceros lamarckii quatrefages (Polychaeta: Serpulidae)
No full textA light- and electron-microscopic investigation of gametogenesis in Typosyllis pulchra (Berkeley and Berkeley) (Polychaeta: Syllidae)
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