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Fig. 1 | Helgoland Marine Research

Fig. 1

From: Ultrastructure of euspermatozoa and paraspermatozoa in the marine gastropod Adelomelon beckii (Caenogastropoda, Volutidae)

Fig. 1

Euspermatozoa of Adelomelon beckii. a Longitudinal section (LS) through the acrosomal complex and the anterior part of the nucleus. b Transverse section (TS) of the apical bleb region of the acrosomal vesicle. c, d Transverse sections through the acrosomal complex. e Anterior region of the acrosomal complex showing the invagination and the axial rod material. f LS through the basal portion of the acrosomal complex, showing the junction with the nucleus. Note the basal plate and the accessory membrane. g TS of the nucleus. ab Apical bleb, ar axial rod material, Av acrosomal vesicle, am accessory membrane, bp basal plate, N nucleus

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Helgoland Marine Research

ISSN: 1438-3888

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