Hemibrycon surinamensis, Gery, 1962

Baicere-Silva, Clarianna Martins, Ferreira, Katiane M., Malabarba, Luiz R., Benine, Ricardo C. & Quagio-Grassiotto, Irani, 2011, Spermatic characteristics and sperm evolution on the subfamily Stevardiinae (Ostariophysi: Characiformes: Characidae), Neotropical Ichthyology 9 (2), pp. 377-392 : 381

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https://doi.org/ 10.1590/S1679-62252011005000014



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Hemibrycon surinamensis


Hemibrycon surinamensis View in CoL ( Fig. 10 View Fig A-F)

In the spermatozoon of Hemibrycon surinamensis the ovoid nucleus measures 1.52  m in the longitudinal axis and 1.2  m in the transverse axis. The surrounding strip of cytoplasm has no organelles ( Fig. 10A View Fig ). Nuclear rotation toward the flagellar axis was about 95 degrees ( Fig.10A View Fig ).The midpiece has a conical shape, measures about 0.9  m in length and contains some slightly elongatemitochondria( Fig.10A View Fig ).Apossibleendomembranesystem seems to be composed of a clump of small vesicles ( Fig.10 View Fig B-F).

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