Eigenmannia trilineata, Lopez & Castello, 1966
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publication ID |
https://doi.org/10.1590/S1679-62252011005000047 |
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https://doi.org/10.5281/zenodo.15224128 |
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persistent identifier |
https://treatment.plazi.org/id/03A787A1-3747-5313-FF50-A790FD0DF9C1 |
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Carolina |
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Eigenmannia trilineata |
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Spermatozoa of Eigenmannia trilineata View in CoL
The spermatozoa of Egenmannia trilineata are comprised of a spherical head ( Fig. 3A View Fig ) containing an ovoid nucleus ( Fig. 1B View Fig ), a distinct midpiece ( Fig. 3 View Fig B-E), and single flagellum ( Fig. 3 View Fig A-B). Nuclear length measured approximately 1.3 µm and width 1.3 µm. The nucleus contains masses of electron-dense flocculent chromatin in a lighter matrix ( Fig. 3 View Fig B-E). Nuclear rotation takes place during spermiogenesis. The proximal centriole is anterior and perpendicular to the distal centriole and both centrioles are contained within a nuclear fossa ( Fig. 3B View Fig ). It was not possible to definitively identify a cytoplasmic collar in the region immediately posterior to the nucleus; however, more posteriorly a collar is lacking. The midpiece contains several elongate mitochondria ( Fig. 3 View Fig B-D-E) and relatively few vesicles ( Fig. 3 View Fig D-E). The flagellum has the usual 9 + 2 microtubular arrangement with no intratubular differentiation ( Fig. 3 View Fig C-D). Along most of its length the flagellum has a pair of lateral projections or fins ( Fig. 3C View Fig ).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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