FIGURE 5 in The Antarctic holothurian genus Echinopsolus Gutt, 1990 (Dendrochirotida, Cucumariidae): brood pouches, spermatozoa, spermatozeugmata and taxonomic implications

• Main Author: Bohn, Jens Michael
• Format: Still Image
• Language: unknown
• Published: Zenodo 2014
• Subjects: Biodiversity; Taxonomy; Antarctic; The Antarctic; Fossa; Antarc*
• Online Access: https://dx.doi.org/10.5281/zenodo.4928474; https://zenodo.org/record/4928474

FIGURE 5. Schematic reconstruction of sperm ultrastructure of Echinopsolus splendidus. a. Longitudinal section of sperm head with acrosomal complex, diplosome with satellite complex and cylindrical mid-piece with mitochondrial ring and mitochondrial cylinder wraping basis of flagellar sperm-tail. b–g. Cross sections. b. Rim of the anterior nuclear depression with embedded acrosomal vesicle. c. Periacrosomal mass. d. Electron dense nucleus with small electron light "vacuole". e. Distal centriole (9 x 3 + 0 tubular arrangement) with satellite complex and subnuclear mitochondrial ring. f. Jacket-shaped mitochondrial derivative encircling flagellar tail-base. g. Flagellar tail. a—acrosomal vesicle; cf—centriolar fossa; cm—cell membrane; dc—distal centriole; f—flagellum; mc—mitochondrial cylinder; mr—mitochondrial ring; n—nucleus; p—periacrosomal material; pc—proximal centriole with fibrous arm; sc—satellite complex; v—nuclear vacuole; x—extracellular space within the mitochondrial cylinder. : Published as part of Bohn, Jens Michael, 2014, The Antarctic holothurian genus Echinopsolus Gutt, 1990 (Dendrochirotida, Cucumariidae): brood pouches, spermatozoa, spermatozeugmata and taxonomic implications, pp. 573-591 in Zootaxa 3841 (4) on page 582, DOI: 10.11646/zootaxa.3841.4.7, http://zenodo.org/record/4928464